Fix textile localized strings.

config/locales/en.yml

@@ -15,14 +15,14 @@
 en:
   github_integration:
     pull_request_opened_comment: >
-      **PR Opened:** "Pull request %{pr_number} “%{pr_title}”":%{pr_url} for "%{repository}":%{repository_url}
-      has been opened by "%{github_user}":%{github_user_url}.
+      **PR Opened:** Pull request %{pr_number} [%{pr_title}](%{pr_url}) for [%{repository}](%{repository_url})
+      has been opened by [%{github_user}](%{github_user_url}).
     pull_request_closed_comment: >
-      **PR Closed:** "Pull request %{pr_number} “%{pr_title}”":%{pr_url} for "%{repository}":%{repository_url}
-      has been closed by "%{github_user}":%{github_user_url}.
+      **PR Closed:** Pull request %{pr_number} [%{pr_title}](%{pr_url}) for [%{repository}](%{repository_url})
+      has been closed by [%{github_user}](%{github_user_url}).
     pull_request_merged_comment: >
-      **PR Merged:** "Pull request %{pr_number} “%{pr_title}”":%{pr_url} for "%{repository}":%{repository_url}
-      has been merged by "%{github_user}":%{github_user_url}.
+      **PR Merged:** Pull request %{pr_number} [%{pr_title}](%{pr_url}) for [%{repository}](%{repository_url})
+      has been merged by [{github_user}](%{github_user_url}).
     pull_request_referenced_comment: >
-      **Referenced in PR:** "%{github_user}":%{github_user_url} referenced this work package in
-      "Pull request %{pr_number} “%{pr_title}”":%{pr_url} on "%{repository}":%{repository_url}.
+      **Referenced in PR:** [%{github_user}](%{github_user_url}) referenced this work package in
+      Pull request %{pr_number} [%{pr_title}](%{pr_url}) on [%{repository}](%{repository_url}).