Update README.md

README.md

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 # Eleven-Terminal
-Eleven Terminal is a terminal calculator used to simplify the calculation.
-
+Eleven Terminal is a terminal calculator used to simplify the calculation.\
 Eleven Terminal have a lot of functionality easy to use and 100% free.
 # Features
 
@@ -18,10 +17,49 @@ Eleven Terminal have a lot of functionality easy to use and 100% free.
 
 -Random building ID generator
 
+# Algebraic & geometric calculations
+
+If people think these calculations are dificult, for this app isn't.\
+This app can calculate anything.\
+All surface of the geometric figures are included, that means you no longer need to calculate manually.\
+Also for algebraic calculations you no longer need to calculate manually.
+
+# G++ guide
+
+This project is builded by g++ tool in VS Code.
+
+Learn more:\
+[G++ guide](https://code.visualstudio.com/docs/cpp/config-mingw)\
+[VS Code](https://code.visualstudio.com/)
+
+# Other tehnic to build the app
+
+G++ isn't the only way to build this project.\
+If you don't understand this tool you can learn from [Project doc](https://github.com/HojdaAdelin/Eleven-Terminal/blob/master/doc/BUILD.md)
+
+# Configure feature
+
+To make more easier this app to be customized I add a small config feature.\
+This concept use [Fstream library](https://cplusplus.com/reference/fstream/fstream/) that manage the config.
+
+There is 2 part of the concept:\
+-write data\
+-read data
+
+# Date display & ID generator
+
+**Date display** work like a timezone.\
+This feature display the current date of the user.
+
+**ID generator** is a feature that create a random string of caracters to describe the ID & Serial build procces.
+
 # Terminal Menu
 
-Before:
-![new_menu](https://user-images.githubusercontent.com/83898333/229078275-f90c5f3b-e235-4425-8ad3-ae0e600d7610.png)
+Default:
+![Screenshot 2023-03-31 120834](https://user-images.githubusercontent.com/83898333/230343451-9831ba8d-2d23-4826-a781-38b0dac93a4d.png)
+
+Colored:
+![Screenshot 2023-03-31 121005](https://user-images.githubusercontent.com/83898333/230343493-3986d302-ef8d-4c29-875c-a4782e6ff1f2.png)
 
-After:
-![colored_menu](https://user-images.githubusercontent.com/83898333/229078355-70adc5dd-5cae-466b-8277-752f33ccf1bb.png)
+Old menu:
+![Screenshot 2023-04-06 125603](https://user-images.githubusercontent.com/83898333/230343524-5715a6c9-86cf-4c13-99a5-73930e7fd99e.png)