Find-DbaInstance, help more markdown-compatible

[niphlod]

Type of Change

• [ ] Bug fix (non-breaking change, fixes # )
• [ ] New feature (non-breaking change, adds functionality, fixes # )
• [ ] Breaking change (affects multiple commands or functionality, fixes # )
• [ ] Ran manual Pester test and has passed (.\tests\manual.pester.ps1)
• [ ] Adding code coverage to existing functionality
• [ ] Pester test is included
• [ ] If new file reference added for test, has is been added to github.com/dataplat/appveyor-lab ?
• [ ] Unit test is included
• [x] Documentation
• [ ] Build system

Purpose

Make the inline help play better with markdown syntax. Fixes https://github.com/dataplat/docs/issues/87

[potatoqualitee]

Thank you, @niphlod ! 🍝