GSoD 2020 - OpenMRS REST API Documentation

Actually @ayesh I have made a list of those talk posts and I am going to remove all those issues in the 3 resources that burke pointed out.

I am done with authentication and currently working on concept section . also I am trying to encorporate all those changes which burke deemed as minimum requirement for each resource here

after I am happy with the current state of these three resouces then we can have a reveiw or a survey again of these theree resources while in parallel I will continue working on other resources and get back to these resources after getting feedback from people