Created using create-react-app and Redux todos example.

https://redux.js.org/basics/example-todo-list
https://github.com/reduxjs/redux/tree/master/examples/todos
https://github.com/robenten/react-redux-draggable-todolist
https://github.com/gitname/react-gh-pages
https://cssreference.io
https://medium.com/@taweesoft/chapter-1-create-react-app-and-setup-firebase-real-time-todo-list-with-firebase-react-js-f03a904097c7

Start React app: npm start
Deploy app to Github Pages: npm run deploy
Add packages to React: npm install --save papaparse