Add pull request body

.github/workflows/localization.yml

@@ -33,6 +33,7 @@ jobs:
     - name: Crowdin Action
       uses: crowdin/github-action@1.5.1
       with:
+        upload_sources: false
         upload_translations: false
         download_translations: true
 
@@ -44,7 +45,14 @@ jobs:
         create_pull_request: true
         localization_branch_name: l10n_crowdin_translations
         pull_request_title: 'New Crowdin Translations'
-        pull_request_body: 'New Crowdin pull request with translations'
+        pull_request_body: |
+            **This is an automated PR.**
+
+            This PR updates the translations using content from Crowdin. Thanks to all the translators for the really hard work!
+            If you want to help to make the localization better, or add a new language, go to [Crowdin](https://crowdin.com/project/openskill) and start helping!.
+
+            [![Crowdin](https://badges.crowdin.net/openskill/localized.svg)](https://crowdin.com/project/openskill)
+
         pull_request_base_branch_name: 'main'
         pull_request_labels: 'translations'
         pull_request_assignees: 'crowdin-bot'