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
diff --git a/releasenotes/source/index.rst b/releasenotes/source/index.rst
index b3922e6..123d783 100644
--- a/releasenotes/source/index.rst
+++ b/releasenotes/source/index.rst
@@ -6,6 +6,7 @@
    :maxdepth: 1
 
    unreleased
+   v0.10.0
    v0.9.0
    v0.8.0
    v0.7.0
diff --git a/releasenotes/source/v0.10.0.rst b/releasenotes/source/v0.10.0.rst
new file mode 100644
index 0000000..4d6348c
--- /dev/null
+++ b/releasenotes/source/v0.10.0.rst
@@ -0,0 +1,6 @@
+=====================
+v0.10.0 Release Notes
+=====================
+
+.. release-notes:: 0.10.0 Release Notes
+   :version: 0.10.0