Updated documentation for adding support for addon target configuration

[jgoakley]

Proposed change

Documentation change for pull request: (home-assistant/supervisor#4694)

Type of change

• Document existing features within Home Assistant
• Document new or changing features which there is an existing pull request elsewhere
• Spelling or grammatical corrections, or rewording for improved clarity
• Changes to the backend of this documentation
• Removed stale or deprecated documentation

Additional information

• This PR fixes or closes issue: fixes #
• Link to relevant existing code or pull request: Add support for setting target path in map config supervisor#4694

[jgoakley]

@pvizeli The related pull request for this documentation update has been merged and released with Supervisor 2023.12.1

Are there any more changes needed to the documentation for this to be merged?
Thanks!