Update merged-notification.yml (#183)

Co-authored-by: Zeke Sikelianos <zeke@sikelianos.com>

.github/workflows/merged-notification.yml

@@ -15,9 +15,9 @@ jobs:
               issue_number: context.payload.pull_request.number,
               body: `Thanks very much for contributing! Your pull request has been merged 🎉 You should see your changes appear on the site in approximately 24 hours. To add your ✨ contribution to the README.md, create a new comment in this PR with:
             
-            ```
+            \`\`\`
             @all-contributors please add @${context.payload.pull_request.user.login} for docs
-            ```
+            \`\`\`
             
             If you want to, you can use the [emoji key](https://allcontributors.org/docs/en/emoji-key) to replace docs with a different contribution type.`
             })