ci: update message in theme pull requests closer workflow (#4465)

Co-authored-by: Alexandr <qwerty541zxc@gmail.com>

.github/workflows/theme-prs-closer.yml

@@ -32,7 +32,7 @@ jobs:
 
       - name: Close Pull Requests
         run: |
-          comment_message="We are currently pausing addition of new themes. If this theme is exclusively for your personal use, then instead of adding it to our theme collection, you can use card customization options."
+          comment_message="We are currently pausing addition of new themes. If this theme is exclusively for your personal use, then instead of adding it to our theme collection, you can use card [customization options](https://github.com/anuraghazra/github-readme-stats?tab=readme-ov-file#customization)."
 
           for pr_number in $(gh pr list -l "themes" -q is:open --json number -q ".[].number"); do
             gh pr close $pr_number -c "$comment_message"