docs review feedback (Azure#11766)

Author: kristapratico

sdk/formrecognizer/azure-ai-formrecognizer/README.md

@@ -25,7 +25,7 @@ pip install azure-ai-formrecognizer
 
 > Note: This version of the client library supports the v2.0-preview version of the Form Recognizer service
 
-### Create a Form Recognizer resource
+#### Create a Form Recognizer resource
 Form Recognizer supports both [multi-service and single-service access][multi_and_single_service].
 Create a Cognitive Services resource if you plan to access multiple cognitive services under a single endpoint/key. For Form Recognizer access only, create a Form Recognizer resource.