Updated Readme.md with a quick note about GraphQL usage in this project.

replaced source id with a dummy data number

deleted client side,added readme.md

removed profile_pic as mandatory field

added api check auth to each query and mutations

added api create logic and store logic

removed env options

added error handling, completed other mutations

added supabase, designed typedefs and resolvers

added supabase, designed typedefs and resolvers