Update articles/azure-web-pubsub/howto-local-debug-event-handler.md

Corrected issues reported in Acrolinx Correctness

Author: PMEds28

articles/azure-web-pubsub/howto-local-debug-event-handler.md

@@ -34,7 +34,7 @@ Follow [Develop with local tunnel tool](./howto-web-pubsub-tunnel-tool.md) to in
 
 ## Debug the event handler endpoint online
 
-Sometimes you might have issue sending events to configured event handler upstream, one typical error type is related to abuse protection failure, for example, `AbuseProtectionResponseInvalidStatusCode`, `AbuseProtectionResponseMissingAllowedOrigin`, or `AbuseProtectionResponseFailed`. Such error is probably related to your upstream app server settings, for example, 403 status code might be related to your app server authentication configuration, 404 status code might caused by inconsistent event handler path configured. One way to troubleshoot such failure is to send an abuse protection request to your configured event handler URL to see if it works, for example, using `curl` command to send an abuse protection request to your configured event handler URL `https://abc.web.com/eventhandler` is as below:
+Sometimes you might have issues sending events to a configured event handler upstream. One typical error type is related to abuse protection failure, for example, `AbuseProtectionResponseInvalidStatusCode`, `AbuseProtectionResponseMissingAllowedOrigin`, or `AbuseProtectionResponseFailed`. Such an error is probably related to your upstream app server settings, for example, 403 status code might be related to your app server authentication configuration, 404 status code might be caused by inconsistent event handler path configuration. One way to troubleshoot such failure is to send an abuse protection request to your configured event handler URL to see if it works, for example, using `curl` command to send an abuse protection request to your configured event handler URL `https://abc.web.com/eventhandler` is as below:
 
 ```bash
 curl https://abc.web.com/eventhandler -X OPTIONS -H "WebHook-Request-Origin: *" -H "ce-awpsversion: 1.0" --ssl-no-revoke -i