Tweaks to HomeKit documentation

[frenck]

Proposed change

Some small tweaks to the (current) HomeKit documentation.

Type of change

• Spelling, grammar or other readability improvements (current branch).
• Adjusted missing or incorrect information in the current documentation (current branch).
• Added documentation for a new integration I'm adding to Home Assistant (next branch).
  • I've opened up a PR to add logo's and icons in Brands repository.
• Added documentation for a new feature I'm adding to Home Assistant (next branch).
• Removed stale or deprecated documentation.

Checklist

• This PR uses the correct branch, based on one of the following:
  • I made a change to the existing documentation and used the current branch.
  • I made a change that is related to an upcoming version of Home Assistant and used the next branch.
• The documentation follows the Home Assistant documentation standards.

[bdraco]

We can remove the Duplicate AID found when attempting to add accessory section as that can't happen anymore

[bdraco]

LGTM 👍

[frenck]

Removed.

[bdraco]

Thanks!