Generalize the Bootstrap documentation (#5631)
Generalize the Bootstrap documentation (#5631)

* Generalize the adding bootstrap documentation

* Update adding-bootstrap.md

* Update adding-bootstrap.md

* Update adding-bootstrap.md

facebookincubator/create-react-app,ConnectedHomes/create-react-web-app,jdcrensh/create-react-app,jdcrensh/create-react-app,jdcrensh/create-react-app,mangomint/create-react-app,d3ce1t/create-react-app,ConnectedHomes/create-react-web-app,ConnectedHomes/create-react-web-app,mangomint/create-react-app,viankakrisna/create-react-app,GreenGremlin/create-react-app,ConnectedHomes/create-react-web-app,GreenGremlin/create-react-app,Timer/create-react-app,Timer/create-react-app,d3ce1t/create-react-app,GreenGremlin/create-react-app,GreenGremlin/create-react-app,jdcrensh/create-react-app,Timer/create-react-app,mangomint/create-react-app,d3ce1t/create-react-app,facebookincubator/create-react-app,facebookincubator/create-react-app,mangomint/create-react-app,d3ce1t/create-react-app,viankakrisna/create-react-app,Timer/create-react-app,viankakrisna/create-react-app