v2.15.0

What's Changed

• feat: add lk docs commands for searching and browsing LiveKit documentation by @bcherry in https://github.com/livekit/livekit-cli/pull/774
• chore(release): bump self and server-sdk to 2.15.0 for release by @rektdeckard in https://github.com/livekit/livekit-cli/pull/782

Full Changelog: https://github.com/livekit/livekit-cli/compare/v2.14.0...v2.15.0