WAF log query for blocked requests is invalid

'action_s' should be 'action_name_s'

Author: ericlobner

articles/web-application-firewall/afds/waf-front-door-monitor.md

@@ -34,7 +34,7 @@ The following example query obtains WAF logs on blocked requests:
 ``` WAFlogQuery
 AzureDiagnostics
 | where ResourceType == "FRONTDOORS" and Category == "FrontdoorWebApplicationFirewallLog"
-| where action_s == "Block"
+| where action_name_s == "Block"
 
 ```
 
@@ -100,4 +100,4 @@ Here is an example of a logged request in Access log:
 
 ## Next steps
 
-- Learn more about [Front Door](../../frontdoor/front-door-overview.md).
+- Learn more about [Front Door](../../frontdoor/front-door-overview.md).