[Doc Request] Create video on full walk through

Blox owners are requesting a video walk through to further ease the onboarding and setup process.

Two videos should be created:
1. One for the RK1 (#158) 
2. One for CM4 (#159)

Videos should go over:
- How to tell it apart
- How to update firmware manually
- How to add storage
- How to set it up in the app 