Add release notes page for version 0.10.0

Patrole 0.10.0 has been released [1].
This commit adds a new page for 0.10.0 release notes.

[1] https://review.opendev.org/#/c/752785/

Change-Id: I1c26117b14d48e6bda7e8c94cd8f3f18b6f95514
2 files changed