Update sources/platform/actors/development/quick_start/start_locally.md

Co-authored-by: Michał Olender <[email protected]>

Author: patrikbraborec

sources/platform/actors/development/quick_start/start_locally.md

@@ -142,7 +142,7 @@ Let's now deploy your Actor to the Apify platform, where you can run the Actor o
     apify push
     ```
 
-## Step 5: It's Time to Iterate!
+### Step 5: It's Time to Iterate!
 
 Good job! 🎉 You're ready to develop your Actor. You can make changes to your Actor and implement your use case.