diff --git a/README.md b/README.md
index ea14358..6f47027 100644
--- a/README.md
+++ b/README.md
@@ -73,8 +73,8 @@ app listening at port 9090
 7. Based on the description above, this web application displays the profile of a certain user stored in the database based on their username provided as parameter in the URL requested by the client. To do this, we have to study the following files:
 
 - We need to have an `hbs` file which will be rendered with details from the database. Go to [`views/profile.hbs`](https://github.com/arvention/ccapdev-database/blob/master/views/profile.hbs) and study the needed values to be rendered in the profile page.
-- Check [`models\db.js`](https://github.com/arvention/ccapdev-database/blob/master/models/db.js) which contains necessary database functions for CRUD (Create, Read, Update, Delete) operations. These methods were discussed in the video lecture. You may read through the inline comments in the [`file`](https://github.com/arvention/ccapdev-database/blob/master/models/db.js) to review.
-- Check [`routes\routes.js`](https://github.com/arvention/ccapdev-database/blob/master/routes/routes.js) which connects a specific callback function defined in [`controllers/controller.js`](https://github.com/arvention/ccapdev-database/blob/master/controllers/controller.js) to its corresponding path and HTTP method.
+- Check [`models/db.js`](https://github.com/arvention/ccapdev-database/blob/master/models/db.js) which contains necessary database functions for CRUD (Create, Read, Update, Delete) operations. These methods were discussed in the video lecture. You may read through the inline comments in the [`file`](https://github.com/arvention/ccapdev-database/blob/master/models/db.js) to review.
+- Check [`routes/routes.js`](https://github.com/arvention/ccapdev-database/blob/master/routes/routes.js) which connects a specific callback function defined in [`controllers/controller.js`](https://github.com/arvention/ccapdev-database/blob/master/controllers/controller.js) to its corresponding path and HTTP method.
 - Study the callback functions defined in [`controllers/controller.js`](https://github.com/arvention/ccapdev-database/blob/master/controllers/controller.js). These functions are called when a client requests for a specific defined path in our server.
 
 All of these mentioned files are properly documented so you might want to open them to understand their content more.
diff --git a/add_data.js b/add_data.js
index ae4aca5..d589809 100644
--- a/add_data.js
+++ b/add_data.js
@@ -1,19 +1,27 @@
-// This script creates the database
-// and inserts 8 user details in the collection `profiles`
+/*
+    This script creates the database
+    and inserts 8 user details in the collection `profiles`
+*/
 
 // import module from `./models/db.js`
 const db = require('./models/db.js');
 
-// name of the collection (table)
-// to perform CRUD (Create, Read, Update, Delete) operations
+/*
+    name of the collection (table)
+    to perform CRUD (Create, Read, Update, Delete) operations
+*/
 const collection = 'profiles';
 
-// calls the function createDatabase()
-// defined in the `database` object in `./models/db.js`
+/*
+    calls the function createDatabase()
+    defined in the `database` object in `./models/db.js`
+*/
 db.createDatabase();
 
-// creates an object
-// containing first name, last name, username, and bio of a user
+/*
+    creates an object
+    containing first name, last name, username, and bio of a user
+*/
 var user = {
     fName: 'Ned',
     lName: 'Stark',
@@ -24,13 +32,17 @@ var user = {
     But I grew up with soldiers. I learned how to die a long time ago.`
 };
 
-// calls the function insertOne()
-// defined in the `database` object in `./models/db.js`
-// stores the object `user` in the collection (table) `profiles`
+/*
+    calls the function insertOne()
+    defined in the `database` object in `./models/db.js`
+    stores the object `user` in the collection (table) `profiles`
+*/
 db.insertOne(collection, user);
 
-// creates an object
-// containing first name, last name, username, and bio of a user
+/*
+    creates an object
+    containing first name, last name, username, and bio of a user
+*/
 var user = {
     fName: 'Bran',
     lName: 'Stark',
@@ -40,13 +52,17 @@ var user = {
     That's something the Gods can't forgive.`
 };
 
-// calls the function insertOne()
-// defined in the `database` object in `./models/db.js`
-// stores the object `user` in the collection (table) `profiles`
+/*
+    calls the function insertOne()
+    defined in the `database` object in `./models/db.js`
+    stores the object `user` in the collection (table) `profiles`
+*/
 db.insertOne(collection, user);
 
-// creates an object
-// containing first name, last name, username, and bio of a user
+/*
+    creates an object
+    containing first name, last name, username, and bio of a user
+*/
 var user = {
     fName: 'Jon',
     lName: 'Snow',
@@ -56,13 +72,17 @@ var user = {
     Then there are no more answers, only better and better lies.`
 };
 
-// calls the function insertOne()
-// defined in the `database` object in `./models/db.js`
-// stores the object `user` in the collection (table) `profiles`
+/*
+    calls the function insertOne()
+    defined in the `database` object in `./models/db.js`
+    stores the object `user` in the collection (table) `profiles`
+*/
 db.insertOne(collection, user);
 
-// creates an object
-// containing first name, last name, username, and bio of a user
+/*
+    creates an object
+    containing first name, last name, username, and bio of a user
+*/
 var user = {
     fName: 'Sansa',
     lName: 'Stark',
@@ -70,13 +90,17 @@ var user = {
     bio: `I'm A Slow Learner, It's True. But I Learn.`
 };
 
-// calls the function insertOne()
-// defined in the `database` object in `./models/db.js`
-// stores the object `user` in the collection (table) `profiles`
+/*
+    calls the function insertOne()
+    defined in the `database` object in `./models/db.js`
+    stores the object `user` in the collection (table) `profiles`
+*/
 db.insertOne(collection, user);
 
-// creates an object
-// containing first name, last name, username, and bio of a user
+/*
+    creates an object
+    containing first name, last name, username, and bio of a user
+*/
 var user = {
     fName: 'Arya',
     lName: 'Stark',
@@ -84,13 +108,17 @@ var user = {
     bio: `Not today.`
 };
 
-// calls the function insertOne()
-// defined in the `database` object in `./models/db.js`
-// stores the object `user` in the collection (table) `profiles`
+/*
+    calls the function insertOne()
+    defined in the `database` object in `./models/db.js`
+    stores the object `user` in the collection (table) `profiles`
+*/
 db.insertOne(collection, user);
 
-// creates an object
-// containing first name, last name, username, and bio of a user
+/*
+    creates an object
+    containing first name, last name, username, and bio of a user
+*/
 var user = {
     fName: 'Cersei',
     lName: 'Lannister',
@@ -99,13 +127,17 @@ var user = {
     There is no middle ground.`
 };
 
-// calls the function insertOne()
-// defined in the `database` object in `./models/db.js`
-// stores the object `user` in the collection (table) `profiles`
+/*
+    calls the function insertOne()
+    defined in the `database` object in `./models/db.js`
+    stores the object `user` in the collection (table) `profiles`
+*/
 db.insertOne(collection, user);
 
-// creates an object
-// containing first name, last name, username, and bio of a user
+/*
+    creates an object
+    containing first name, last name, username, and bio of a user
+*/
 var user = {
     fName: 'Tyrion',
     lName: 'Lannister',
@@ -114,13 +146,17 @@ var user = {
     Wear it like armor, and it can never be used to hurt you`
 };
 
-// calls the function insertOne()
-// defined in the `database` object in `./models/db.js`
-// stores the object `user` in the collection (table) `profiles`
+/*
+    calls the function insertOne()
+    defined in the `database` object in `./models/db.js`
+    stores the object `user` in the collection (table) `profiles`
+*/
 db.insertOne(collection, user);
 
-// creates an object
-// containing first name, last name, username, and bio of a user
+/*
+    creates an object
+    containing first name, last name, username, and bio of a user
+*/
 var user = {
     fName: 'Daenerys',
     lName: 'Targaryen',
@@ -132,8 +168,10 @@ var user = {
     I’m going to break the wheel.`
 };
 
-// calls the function insertOne()
-// defined in the `database` object in `./models/db.js`
-// stores the object `user` in the collection (table) `profiles`
+/*
+    calls the function insertOne()
+    defined in the `database` object in `./models/db.js`
+    stores the object `user` in the collection (table) `profiles`
+*/
 db.insertOne(collection, user);
 
diff --git a/controllers/controller.js b/controllers/controller.js
index dde8234..63c5480 100644
--- a/controllers/controller.js
+++ b/controllers/controller.js
@@ -1,43 +1,57 @@
 // import module from `../models/db.js`
 const db = require('../models/db.js');
 
-// defines an object which contains functions executed as callback
-// when a client requests for a certain path in the server
+/*
+    defines an object which contains functions executed as callback
+    when a client requests for a certain path in the server
+*/
 const controller = {
 
-    // executed when the client sends an HTTP GET request `/favicon.ico`
-    // as defined in `../routes/routes.js`
+    /*
+        executed when the client sends an HTTP GET request `/favicon.ico`
+        as defined in `../routes/routes.js`
+    */
     getFavicon: function (req, res) {
         res.status(204);
     },
 
-    // executed when the client sends an HTTP GET request `/:username`
-    // as defined in `../routes/routes.js`
+    /*
+        executed when the client sends an HTTP GET request `/:username`
+        as defined in `../routes/routes.js`
+    */
     getProfile: function (req, res) {
 
         // gets the parameter `username` from the URL
         var u = req.params.username;
 
-        // creates an object `query`
-        // which assigns the value of the variable `u` to field `username`
+        /*
+            creates an object `query`
+            which assigns the value of the variable `u` to field `username`
+        */
         var query = {username: u};
 
-        // calls the function findOne()
-        // defined in the `database` object in `../models/db.js`
-        // this function searches the collection `profiles`
-        // based on the value set in object `query`
-        // the third parameter is a callback function
-        // this called when the database returns a value
-        // saved in variable `result`
+        /*
+            calls the function findOne()
+            defined in the `database` object in `../models/db.js`
+            this function searches the collection `profiles`
+            based on the value set in object `query`
+            the third parameter is a callback function
+            this called when the database returns a value
+            saved in variable `result`
+        */
         db.findOne('profiles', query, function (result) {
 
-            // renders `../views/profile.hbs`
-            // with the values in variable `results`
+            /*
+                renders `../views/profile.hbs`
+                with the values in variable `results`
+            */
             res.render('profile', result);
         });
     }
 }
 
-// exports the object `controller` (defined above)
-// when another script exports from this file
+/*
+    exports the object `controller` (defined above)
+    when another script exports from this file
+*/
 module.exports = controller;
diff --git a/models/db.js b/models/db.js
index e5ab5b3..c08b648 100644
--- a/models/db.js
+++ b/models/db.js
@@ -15,7 +15,9 @@ const options = { useUnifiedTopology: true };
 // defines an object which contains necessary database functions
 const database = {
 
-    // creates database
+    /*
+        creates database
+    */
     createDatabase: function() {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -24,7 +26,9 @@ const database = {
         });
     },
 
-    // creates collection `collection`
+    /*
+        creates collection `collection`
+    */
     createCollection: function(collection) {
         client.connect(url, options, function(err, db) {
             if(err) throw err;
@@ -37,7 +41,9 @@ const database = {
         });
     },
 
-    // inserts document `doc` to collection `collection`
+    /*
+        inserts document `doc` to collection `collection`
+    */
     insertOne: function(collection, doc) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -50,7 +56,9 @@ const database = {
         });
     },
 
-    // inserts array of documents `docs` to collection `collection`
+    /*
+        inserts array of documents `docs` to collection `collection`
+    */
     insertMany: function(collection, docs) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -63,10 +71,12 @@ const database = {
         });
     },
 
-    // searches for a single document in the collection `collection`
-    // based on the contents of object `query`
-    // callback function is called
-    // when the database has finished the execution of findOne() function
+    /*
+        searches for a single document in the collection `collection`
+        based on the contents of object `query`
+        callback function is called
+        when the database has finished the execution of findOne() function
+    */
     findOne: function(collection, query, callback) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -79,10 +89,12 @@ const database = {
         });
     },
 
-    // searches for multiple documents in the collection `collection`
-    // based on the contents of object `query`
-    // callback function is called
-    // when the database has finished the execution of findMany() function
+    /*
+        searches for multiple documents in the collection `collection`
+        based on the contents of object `query`
+        callback function is called
+        when the database has finished the execution of findMany() function
+    */
     findMany: function(collection, query, sort=null, projection=null, callback) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -96,8 +108,10 @@ const database = {
         });
     },
 
-    // deletes a single document in the collection `collection`
-    // based on the object `filter`
+    /*
+        deletes a single document in the collection `collection`
+        based on the object `filter`
+    */
     deleteOne: function(collection, filter) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -110,8 +124,10 @@ const database = {
         });
     },
 
-    // deletes multiple documents in the collection `collection`
-    // based on the object `filter`
+    /*
+        deletes multiple documents in the collection `collection`
+        based on the object `filter`
+    */
     deleteMany: function(collection, filter) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -124,7 +140,9 @@ const database = {
         });
     },
 
-    // drops the collection `collection`
+    /*
+        drops the collection `collection`
+    */
     dropCollection: function(collection) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -137,9 +155,11 @@ const database = {
         });
     },
 
-    // updates the value defined in the object `update`
-    // on a single document in the collection `collection`
-    // based on the object `filter`
+    /*
+        updates the value defined in the object `update`
+        on a single document in the collection `collection`
+        based on the object `filter`
+    */
     updateOne: function(collection, filter, update) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -152,9 +172,11 @@ const database = {
         });
     },
 
-    // updates the value defined in the object `update`
-    // on multiple documents in the collection `collection`
-    // based on the object `filter`
+    /*
+        updates the value defined in the object `update`
+        on multiple documents in the collection `collection`
+        based on the object `filter`
+    */
     updateMany: function(collection, filter, update) {
         client.connect(url, options, function (err, db) {
             if(err) throw err;
@@ -168,6 +190,8 @@ const database = {
     }
 }
 
-// exports the object `database` (defined above)
-// when another script exports from this file
+/*
+    exports the object `database` (defined above)
+    when another script exports from this file
+*/
 module.exports = database;
diff --git a/routes/routes.js b/routes/routes.js
index cee9c1c..ab6abfd 100644
--- a/routes/routes.js
+++ b/routes/routes.js
@@ -7,17 +7,23 @@ const controller = require('../controllers/controller.js')
 
 const app = express();
 
-// execute function getFavicon()
-// defined in object `controller` in `../controllers/controller.js`
-// when a client sends an HTTP GET request for `/favicon.ico`
+/*
+    execute function getFavicon()
+    defined in object `controller` in `../controllers/controller.js`
+    when a client sends an HTTP GET request for `/favicon.ico`
+*/
 app.get('/favicon.ico', controller.getFavicon);
 
-// execute function getFavicon()
-// defined in object `controller` in `../controllers/controller.js`
-// when a client sends an HTTP GET request for `/:username`
-// where `username` is a parameter
+/*
+    execute function getFavicon()
+    defined in object `controller` in `../controllers/controller.js`
+    when a client sends an HTTP GET request for `/:username`
+    where `username` is a parameter
+*/
 app.get('/:username', controller.getProfile);
 
-// exports the object `app` (defined above)
-// when another script exports from this file
+/*
+    exports the object `app` (defined above)
+    when another script exports from this file
+*/
 module.exports = app;