[Notes] Adding missing switch statement notes.

[Ghat0tkach]

📜 Feature Description

The switch statement notes are missing , I would like to add it to help beginners to understand and why the switch statement is used .

🎤 Pitch

No response

👀 Have you spent some time to check if this issue has been raised before?

• [X] I checked and didn't find similar issue

🔖 Have you read the Code of Conduct?

• [X] Yes, I have read Code of Conduct.