11.0.0-rc1 release notes

This is now for RC1

Updated the google doc for RC1, reviewed the known issues, etc. Definitely needs more work though.

Sorry, #5 was by mistake.

Reviewed and updated the rc1 release notes, I think this is ready for review now.

xjm → credited catch → .

xjm → credited quietone → .

Adding credits.

It's tagged -- thanks everyone!

Automatically closed - issue fixed for 2 weeks with no activity.