[FEAT]: howto: Add howto-install-micropython-nano33ble

[gmacario]

📑 Description

Closes #361

✅ Checks

• [x] My pull request adheres to the code style of this project
• [x] My code requires changes to the documentation
• [x] I have updated the documentation as required
• [x] All the tests have passed

ℹ Additional Information

[gmacario]

@alv67 kindly please review