Get started with Swashbuckle and ASP.NET Core
Mention SignalR Core 3.0's auto reconnect support (#15703) * Mention SignalR Core 3.0's auto reconnect support * Nits * Update aspnetcore/signalr/version-differences.md Co-Authored-By: Scott Addie <[email protected]> * Update version-differences.md * Update version-differences.md * minor edits