Added warning about fabbot could be wrong

Author: Nyholm

contributing/code/pull_requests.rst

@@ -402,22 +402,25 @@ pressured to refactor your code immediately when someone provides feedback.
 Automated Feedback
 ~~~~~~~~~~~~~~~~~~
 
-There are many automated scripts that will provide feedback on your PR.
+There are many automated scripts that will provide feedback on a pull request.
 
 fabbot
 """"""
 
-`fabbot`_ will review code style, check for common typos and make sure your git
+`fabbot`_ will review code style, check for common typos and make sure the git
 history looks good. If there are any issues, fabbot will often suggest what changes
 that should be done. Most of the time you get a command to run to automatically
 fix the changes.
 
+It is rare, but fabbot could be wrong. One should verify if the suggested changes
+make sense and that they are related to the pull request.
+
 Psalm
 """""
 
-`Psalm`_ will make a comment on your Pull Request if it discovers any potential
+`Psalm`_ will make a comment on a pull request if it discovers any potential
 type errors. The Psalm errors are not always correct, but each should be reviewed
-and discussed. A Pull Request should not update the Psalm baseline nor add ``@psalm-``
+and discussed. A pull request should not update the Psalm baseline nor add ``@psalm-``
 annotations.
 
 After the `Psalm phar is installed`_, the analysis can be run locally with: