Add w3school content (#4807)

Added W3schools resource to learn react with create react app. w3schools does a pretty great job at explaining stuff.

src/data/roadmaps/react/content/101-cli-tools/101-create-react-app.md

@@ -7,4 +7,5 @@ It sets up your development environment so that you can use the latest JavaScrip
 Visit the following resources to learn more:
 
 - [Official Docs](https://react.dev/learn/start-a-new-react-project)
+- [React W3Schools](https://www.w3schools.com/react/react_intro.asp)
 - [Advanced: Custom Setup with Webpack](https://www.robinwieruch.de/minimal-react-webpack-babel-setup/)