Setting up AWS resources: change step 4 to be a bullet list

Author: Stuart MacKay

src/tutorials/initial-setup.md

@@ -57,7 +57,7 @@ The `Stack name` field will be filled out with the query parameter in the `Launc
 
 **4\. Review and create**
 
-1. Click `Submit`
+* Click `Submit`
 
 [^1]: See [Choose an AWS Region](../how-to/set-up/choose-aws-region.md) for more info