hosted at https://amolmishra.github.io/react-task-manager-app/
It is a very basic react application, to understand how the react helps do things easily, that would've been very difficult with plain old JS.
Tha very minimalistic backend i.e. the db is hosted on heroku. the source is at : https://github.com/amolmishra/react-task-manager-db