Update page.mdx

Author: iuwqyir

apps/portal/src/app/insight/webhooks/filtering/page.mdx

@@ -24,7 +24,7 @@ Subscribes to blockchain transactions.
 ## Webhook Filters
 
 You can filter webhook notifications based on specific criteria.  
-Each webhook must have either a events filter or a transcations filter (or both).
+Each webhook must have either an events filter or a transactions filter (or both).
 
 ### Event Filters
 ```typescript