doc: update README

Added that the issue author's own comments
and comments by bots are excluded.

Author: eichisanden

README.md

@@ -13,7 +13,8 @@ The metrics that are measured are:
 | Time to answer | (Discussions only) The time between when a discussion is created and when it is answered. |
 | Time in label | The time between when a label has a specific label applied to an issue/pull request/discussion and when it is removed. This requires the LABELS_TO_MEASURE env variable to be set. |
 
-*For pull requests, these metrics exclude the time the PR was in draft mode.
+*For pull requests, these metrics exclude the time the PR was in draft mode.  
+*For Issue and pull requests, issue/pull request author's own comments and comments by bots are excluded.
 
 This action was developed by the GitHub OSPO for our own use and developed in a way that we could open source it that it might be useful to you as well! If you want to know more about how we use it, reach out in an issue in this repository.