Update image Markdown format

Author: johndowns

articles/web-application-firewall/ag/application-gateway-waf-configuration.md

@@ -22,7 +22,7 @@ Exclusion lists are global in scope.
 
 To set exclusion lists in the Azure portal, configure **Exclusions** in the WAF policy resource's **Policy settings** page:
 
-![Screenshot of the Azure portal that shows the exclusions configuration for the W A F policy.](../media/application-gateway-waf-configuration/waf-policy-exclusions.png)
+:::image type="content" source="../media/application-gateway-waf-configuration/waf-policy-exclusions.png" alt-text="Screenshot of the Azure portal that shows the exclusions configuration for the W A F policy.":::
 
 ## Attributes
 

articles/web-application-firewall/ag/application-gateway-waf-request-size-limits.md

@@ -36,7 +36,7 @@ For CRS 3.2 (on the WAF_v2 SKU) and newer, these limits are as follows when usin
 
 To set request size limits in the Azure portal, configure **Global parameters** in the WAF policy resource's **Policy settings** page:
 
-![Screenshot of the Azure portal that shows the request size limits configuration for the W A F policy.](../media/application-gateway-waf-request-size-limits/waf-policy-limits.png)
+:::image type="content" source="../media/application-gateway-waf-request-size-limits/waf-policy-limits.png" alt-text="Screenshot of the Azure portal that shows the request size limits configuration for the W A F policy.":::
 
 ## Request body inspection