Added Todoist clone under React category

Author: JayTailor45

README.md

@@ -214,6 +214,7 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 - [Build an Appointment Scheduler](https://hackernoon.com/build-an-appointment-scheduler-using-react-twilio-and-cosmic-js-95377f6d1040)
 - [Build A Chat App with Sentiment Analysis](https://codeburst.io/build-a-chat-app-with-sentiment-analysis-using-next-js-c43ebf3ea643)
 - [Build A Full Stack Web Application Setup](https://hackernoon.com/full-stack-web-application-using-react-node-js-express-and-webpack-97dbd5b9d708)
+- [Create Todoist clone with React and Firebase](https://www.youtube.com/watch?v=hT3j87FMR6M)
 - Build A Random Quote Machine
  - [Part 1](https://www.youtube.com/watch?v=3QngsWA9IEE)
  - [Part 2](https://www.youtube.com/watch?v=XnoTmO06OYo)