Elaborate on instructions for home assistant deployed using docker container

[srwareham]

Elaborate on instructions for home assistant deployed using docker container

Proposed change

Documentation update describing how weatherflow integration needs to be configured when home assistant is run from a docker container.

Type of change

• [ ] Spelling, grammar or other readability improvements (current branch).
• [x] 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 logos and icons in Brands repository.
• [ ] Added documentation for a new feature I'm adding to Home Assistant (next branch).
• [ ] Removed stale or deprecated documentation.

Additional information

• This PR fixes or closes issue: fixes https://github.com/home-assistant/core/issues/101423

Checklist

• [x] 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.
• [x] The documentation follows the Home Assistant documentation standards.

Summary by CodeRabbit

• Documentation
  • Updated instructions for deploying Home Assistant via a Docker container with specific networking configurations for proper UDP communication on port 50222.