Update README/ Improve API Documentation

[chukaibejih]

• The README's API Endpoints section should be revised to reflect the current set of endpoints that are available in the project.
  https://github.com/chukaibejih/smart_learn#api-endpoints

• Enhance the API documentation by providing more detailed explanations of endpoints, request/response examples, and authentication requirements. This will make it easier for developers to integrate the API into their projects.

[mayals]

Hello Chukwuka,

Could I add this step in .Getting Started, as detail step after or before the step number 5 ?

-- Go to .settings.DATABASES, then deactivate #PRODUCTION mode and activate #Development mode, add PostgreSQL configuration to connect to your database to be the default database.

[chukaibejih]

Hello May,

Yes, you can add that step in the "Getting Started" section. Thank you for suggesting this addition!