Fix typo

Author: hmac

.github/workflows/qhelp-pr-preview.yml

@@ -1,5 +1,5 @@
 # This workflow checks for any changes in .qhelp files in pull requests.
-# For any changed files, it renders them to HTML in a file called `comment_body.txt`.
+# For any changed files, it renders them to markdown in a file called `comment_body.txt`.
 # It then checks if there's an existing comment on the pull request generated by
 # this workflow, and writes the comment ID to `comment_id.txt`.
 # It also writes the PR number to `pr_number.txt`.