Summary heading updates

Author: ryanberg-aquent

support/azure/app-service/connection-issues-with-ssl-or-tls/use-azure-app-service-certificate-with-application-gateway.md

@@ -130,7 +130,7 @@ Set-AzApplicationGateway -ApplicationGateway $AppGw
 - Regularly audit access policies in Key Vault.
 - Keep secure backup copies of your exported `.pfx` files.
 
-## Summary
+### Summary
 
 | Feature | App Service | Application Gateway
 | --- | --- | ---

support/azure/app-service/connection-issues-with-ssl-or-tls/use-azure-app-service-certificate-with-azure-front-door.md

@@ -112,7 +112,7 @@ To add the certificate:
 
 After verification is made, Front Door serves traffic securely by using the certificate from Azure Key Vault. For more information, see [Add a custom domain in Azure Front Door](/azure/frontdoor/standard-premium/how-to-add-custom-domain).
 
-## Summary
+### Summary
 
 | Task | Tool | Notes
 | --- | --- | ---