Update README with some basic documentation
Update README with some basic documentation

maovt/p3_api,maovt/p3_api,PATRIC3/p3_api,aswarren/p3_api,maovt/p3_api,aswarren/p3_api,maovt/p3_api,PATRIC3/p3_api,maovt/p3_api,maovt/p3_api