Proposed change

Add standard documentation for new ha integration hausbus

Type of change

• Spelling, grammar or other readability improvements (current branch).
• Adjusted missing or incorrect information in the current documentation (current branch).
• [x ] 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

• Link to parent pull request in the codebase: pending
• Link to parent pull request in the Brands repository: black and white brand logos for HA brands#7758
• This PR fixes or closes issue: fixes #

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.