I have a project containing multiple other projects :
All containing <
it will automatically create a .gitignore file if not then create a file name .gitignore
and add copy & paste the below code
# dependencies
/node_modules
/.pnp
.pnp.js
# testing
/coverage
# production
/build
# misc
.DS_Store
.env.local
.env.development.local
.env.test.local
.env.production.local
npm-debug.log*
yarn-debug.log*
yarn-error.log*
these below are all unnecessary files
See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
and save the .gitignore file and you can upload