add references

Author: tienbku

README.md

@@ -5,6 +5,8 @@ For more detail, please visit:
 
 > [React (with Hooks) File Upload with Axios & Boostrap Progress Bar](https://bezkoder.com/react-hooks-file-upload/)
 
+> [Material UI File Upload example with Axios & Progress Bar](https://bezkoder.com/material-ui-file-upload/)
+
 Rest APIs server for this React Client:
 > [Node.js Express File Upload Rest API example](https://bezkoder.com/node-js-express-file-upload/)