link fix

Author: ggailey777

articles/azure-functions/event-grid-how-tos.md

@@ -126,7 +126,7 @@ To test an Event Grid trigger locally, you have to get Event Grid HTTP requests
 
 When you're done testing, you can use the same subscription for production by updating the endpoint. Use the [`az eventgrid event-subscription update`](/cli/azure/eventgrid/event-subscription#az-eventgrid-event-subscription-update) Azure CLI command.
 
-You can also use the *ngrok* utility to forward remote requests to your locally running functions. For more information, see see [this tutorial](../functions-event-grid-blob-trigger.md#start-local-debugging).
+You can also use the *ngrok* utility to forward remote requests to your locally running functions. For more information, see see [this tutorial](./functions-event-grid-blob-trigger.md#start-local-debugging).
 
 ### Create a viewer web app