Rename add patch set permission in docs to the correct name

Change-Id: Ied11ed117dbca383d8dd64484362ac696258e0f9
diff --git a/Documentation/access-control.txt b/Documentation/access-control.txt
index b76cabc..51b1c68 100644
--- a/Documentation/access-control.txt
+++ b/Documentation/access-control.txt
@@ -564,8 +564,8 @@
 new changes for code review, this depends on which namespace the
 permission is granted to.
 
-[[category_push_patch_set]]
-=== Push Patch Set
+[[category_add_patch_set]]
+=== Add Patch Set
 
 This category controls which users are allowed to upload new patch sets to
 existing changes. Irrespective of this permission, change owners are always