docs: update CONTRIBUTING.md

Author: SergeyKazarinov

CONTRIBUTING.md

@@ -28,12 +28,12 @@ Start reading our code, and you'll get the hang of it. We optimize for readabili
 Local development configuration is pretty snappy. Here's how to get set up:
 
 1. Install/use node >=16.0.0
-1. Install/use yarn <=1.x.x
+1. Install/use yarn >=4.6.x
 1. Run `yarn link` from project root
 1. Run `cd docs-site && yarn link react-datepicker`
 1. Run `yarn install` from project root
 1. Run `yarn build` from project root (at least the first time, this will get you the `dist` directory that holds the code that will be linked to)
-1. Run `yarn start` from project root. (This command launches a documentation app and runs it as a simple webserver at http://localhost:3000.)
+1. Run `yarn start` from project root. (This command launches a documentation app and runs it as a simple webserver at http://localhost:5173.)
 1. Open new terminal window
 1. Run `yarn build-dev` from project root. (This command sets up a development environment that keeps an eye on any file changes. When a file is updated, it auto-builds using the latest code.)