Fix spelling mistakes in release notes

Change-Id: Ieea1e0703f8b1814eee55a19f3af5890ca2ecd0b

ReleaseNotes/ReleaseNotes-2.2.2.2.txt

diff --git a/ReleaseNotes/ReleaseNotes-2.2.2.2.txt b/ReleaseNotes/ReleaseNotes-2.2.2.2.txt
index db5d750..f7c299e 100644
--- a/ReleaseNotes/ReleaseNotes-2.2.2.2.txt
+++ b/ReleaseNotes/ReleaseNotes-2.2.2.2.txt
@@ -21,4 +21,4 @@
 section name as All-Projects. This is an unlikely scenario for
 most servers, as Gerrit does not normally set inheritFrom equal to
 All-Projects. The usual behavior is to not supply this property in
-project.config, and permit the implicit inheritence to take place.
+project.config, and permit the implicit inheritance to take place.