I had not don ethis in a while. Here it is recorded.
Assumes you have npm.
create direcctory (mkdir whatever)
npm init whatever
npm install --save-dev create-react-app
npx create-react-app whatever
---- it should run
start a new command window --- I use conemu
go to the directory you just created
if you have vscode installed type code .
thats code (dot)
update the code. refresh browser bingo...