Fix docs for typo

Noah Hanjun Lee · web-flow · commit 28269966002b · 2021-11-11T20:56:46.000+09:00
diff --git a/docs/tasks/integration.md b/docs/tasks/integration.md
@@ -31,8 +31,6 @@ jobs:
     # Run your deployment commands.
 ```
 
-### Step 2:
-
 ## Slack
 
 Slack integration provides Chatops (i.e. deploy, rollback) and notification alert for events.
