Document API Endpoints in README

[Dippp10]

@rithvik ji, The README does not provide information about the available API endpoints, request methods, parameters, or example responses. Adding this documentation would make it easier for users to understand and utilize the API.

[Dippp10]

@rithvik ji, i have created above new issue number 43 ....do assign GSSoC'2025 label , level 1 label to it........doa ssign mentors to it... do assign above issue to me