docs: add alt tag to homepage logo (#9499)
docs: add alt tag to homepage logo (#9499)


facebookincubator/create-react-app,jdcrensh/create-react-app,facebookincubator/create-react-app,jdcrensh/create-react-app,jdcrensh/create-react-app,jdcrensh/create-react-app,facebookincubator/create-react-app