Use installing package manager in README#7687

Merged

mrmckeb merged 3 commits intofacebook:masterfrom

Oct 2, 2019

Commits on Sep 16, 2019

update readme based on package manager used by user.
ashr81
committed
Merge branch 'master' of https://github.com/facebook/create-react-app
ashr81
committed

Commits on Sep 27, 2019

changed variable name and updating script directly
ashr81
committed