update tutorial content and styling
update tutorial content and styling

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