Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -11,7 +11,7 @@ By participating, you are expected to uphold this code. Please report unacceptab
 ## 2. Team members:
 - Amine Djeghri
 
-## 💡3. Best practices
+## 3. Best practices 💡
 - Docstring your functions and classes, it is even more important as it is used to generate the documentation with Mkdocs
 - If you use an IDE (like pycharm), define src the "source" folder and test the "test" folder so your IDE can help you auto import files
 - Use the `make` commands to run your code, it is easier and faster than writing the full command (and check the Makefile for all available commands 😉)