Documentation: Various corrections

Correct typos, spelling mistakes, and grammatical errors.

Change-Id: I80ec66de7b2228f9ff45a2f06faf576707195758

Documentation/error-no-changes-made.txt

diff --git a/Documentation/error-no-changes-made.txt b/Documentation/error-no-changes-made.txt
index 7ef7082..d0e1d4f 100644
--- a/Documentation/error-no-changes-made.txt
+++ b/Documentation/error-no-changes-made.txt
@@ -2,10 +2,10 @@
 ===============
 
 With this error message Gerrit rejects to push a commit as a new
-patch set for a change, if the pushed commit is identical with the
+patch set for a change, if the pushed commit is identical to the
 current patch set of this change.
 
-A pushed commit is considered to be identical with the current patch
+A pushed commit is considered to be identical to the current patch
 set if
 
 - the files in the commit,