- Update "Learn how to use Fleet" docs page to walk a Fleet Sandbox user through adding their device and running a query
- Add a "Get operating system information" query to standard query library for the "Learn how to use Fleet" walkthrough
- Update Fleet's top level README to point users who want to try Fleet to Fleet Sandbox
- Update "How to install osquery..." (macOS, Windows, Linux) blog posts to point users who want to try Fleet to Fleet Sandbox
- Move `fleetctl preview` questions to "Contributing" FAQ section in docs. This is because `fleetctl preview` is now a testing tool for Fleet contributors
- Update "Deploying" docs to point users who want to try Fleet to Fleet Sandbox