Merge pull request #1 from chronark/patch-1

Add steps for using in a thread

examples/github-pr-alerts-workflow/README.md

@@ -9,6 +9,15 @@ This workflow expects the following secrets to be set in the repository:
 - `CAMPSITE_API_KEY`: The API key for the Campsite API (we suggest creating a dedicated "GitHub" integration for this)
 - `CAMPSITE_PR_ALERTS_THREAD_ID`: The ID of the thread in Campsite where the PR alerts should be posted
 
+#### Using a thread
+
+If you’re trying to send a message to a thread, you need to add the integration to the thread first:
+
+1. Open the thread in Campsite
+2. Click the ••• menu in the top corner
+3. Click “Manage integrations”
+4. Add your integration to the thread
+
 ### How we use it
 
 We use this workflow internally at Campsite to post messages in a thread whenever a pull request is opened, closed, or merged. We use an API key from a custom "GitHub" integration so messages are posted as if they came from GitHub.