add scrypt to hashing

hashing.md

@@ -6,38 +6,47 @@ Supercharge comes with a hashing package allowing you to seamlessly hash values
 
 
 ## Configuration
-The hashing configuration file is located at `config/hashing.ts`. It contains the default hash driver and the corresponding settings. At this point, only bcrypt is supported as a hash driver. You may adjust bcrypt’s work factor in the configuration file.
+The hashing configuration file is located at `config/hashing.ts`. It contains the default hash driver and the corresponding hash driver settings.
+
+
+### Available Hashing Drivers
+Supercharge uses a driver-based approach for hashing. A driver represents a hash algorithm used to generate the hash for a given value. Here’s a list of available hash drivers:
+
+| Hash Driver   | Description                                  |
+|-------------- |--------------------------------------------- |
+| `bcrypt`      | Uses the bcrypt hashing algorithm            |
+| `scrypt`      | Uses Node.js native [scrypt](https://nodejs.org/docs/latest-v18.x/api/crypto.html#cryptoscryptpassword-salt-keylen-options-callback) hashing algorithm |
 
 
 ## Hashing Passwords
-Create a hash using the `make` method from the `Hash` facade:
+Create a hash of a given string value using the `make` method from the `Hash` facade:
 
 ```ts
 import { Hash } from '@supercharge/facades'
 
-const hash = Hash.make('plain-text')
+const hashedValue = Hash.make('plain-text')
 ```
 
 
 ## Verifying Passwords Matching a Hash
-Use the `check` method from the `Hash` facade to verify that a given plain text value matches the related hash:
+Use the `check` method from the `Hash` facade to verify that a given plain text value matches given related hash:
 
 ```ts
 import { Hash } from '@supercharge/facades'
 
-if (Hash.check('plain-text', $hashValue)) {
+if (Hash.check('plain-text', hashedValue)) {
     // … verified: values match
 }
 ```
 
 
 ## Determine if Rehash is Needed
-Use the `needsRehash` method to determine whether the work factor has changed since hashing the given value:
+Use the `needsRehash` method to determine whether the algorithm or hashing options have changed since creating the hashed value:
 
 ```ts
 import { Hash } from '@supercharge/facades'
 
-if (Hash.needsRehash($hashValue)) {
-    $hashValue = await Hash.make('plain-value')
+if (Hash.needsRehash(hashedValue)) {
+    const newHashedValue = await Hash.make('plain-value')
 }
 ```