Document updating VS Code

[jsjoeio]

With our new fork, our docs are out-of-date for how to update VS Code. We should document this so anyone can do it.

[andreivisan]

I have written a description here https://github.com/andreivisan/Raspberry-Pi-4-Code-Server and created a video here https://youtu.be/75Sn-fGt3UA .

[jsjoeio]

@andreivisan awesome! You should share those under Show and Tell here 🙌

[andreivisan]

Thank you @jsjoeio ! I created it here #4583