Merge pull request #1080 from github/timrogers/ghes-url-note

Clarify release notes

Author: timrogers

RELEASENOTES.md

@@ -1,5 +1,5 @@
-- Adds GHES API URL validation
+- Validate that the `--ghes-api-url` is a valid URL in `gh gei generate-script`
 - Allow CLI to fail fast when an unauthorized token is provided by preventing retry logic on 401 errors
 - Improve performance when reclaiming a single mannequin with `reclaim-mannequin`
 - Improve logging for `reclaim-mannequin` command
-- Log filename now contains the process id to make sure it is unique
+- Ensure that CLI runs have separate log files, even if they start at the same time, by adding the process ID to the filenames