Config: Improve inline docs in docker-compose.yml examples

[sssheridan]

This is my first-ever pull request. If I've done this right, I'll contribute more substantially later.

In this commit, I edited a few comments for clarity. Should such edits be made individually to each architecture's docker-compose.yml, or is there a root file which propagates to the different architectures?

The primary reason for this edit in particular was the "# Raspberry V4L2" line. I initially (naively) thought this entry referred to hardware acceleration on the Raspberry Pi; I added "(camera driver)" to make it clear.

Acceptance Criteria:

• Features and improvements are fully implemented so that they can be released at any time without additional work
• Automated unit and/or acceptance tests have been added to ensure the changes work as expected and to reduce repetitive manual work
• User interface changes are fully responsive and have been tested on all major browsers and various devices
• Database-related changes are compatible with SQLite and MariaDB
• Translations have been / will be updated (specify if needed)
• Documentation has been / will be updated (specify if needed)
• Contributor License Agreement (CLA) has been signed

[CLAassistant]

All committers have signed the CLA.

[lastzero]

• I've just changed facial to face recognition as that seems to be more common (not a native speaker...)?
• Happy to change the comments for JPEG quality if it helps 👍
• For video devices on the RP4, see (video11 is not the camera): https://www.raspberrypi.com/documentation/accessories/camera.html#driver-differences-when-using-libcamera-or-the-legacy-stack

[lastzero]

Will these changes work for you?

[jackbrown1993]

These changes look good to me.