fixup! fixup! fixup! [docs] Update docs on code-review process

Expand the new paragraph

Author: banach-space

llvm/docs/CodeReview.rst

@@ -159,8 +159,11 @@ you are fairly certain that a particular community member will wish to review,
 even if that person hasn't done so yet.
 
 If new comments are posted after the patch has been approved (but not yet
-merged), these need to be addressed and all new changes have to be reviewed and
-approved by a reviewer.
+merged), these need to be addressed following similar process as outlined
+above. Specifically, a reviewer should confirm that all feedback has been
+addressed before a patch is merged, including the newly posted comments.
+Exceptions apply - e.g. there's no need to confirm that a comment requesting a
+typo to be fixed has been addressed (this should be evident from the code).
 
 Note that, if a reviewer has requested a particular community member to review,
 and after a week that community member has yet to respond, feel free to ping