Fix broken link in Facebook Lead Ads Source (#4180)

Author: markzegarelli

src/connections/sources/catalog/cloud-apps/facebook-lead-ads/index.md

@@ -32,7 +32,7 @@ Use the following permissions to access the page and lead information for enrich
 - pages_manage_ads 
 - leads_retrieval
 - ads_management
-Learn more about permissions [here] (https://developers.facebook.com/docs/marketing-api/guides/lead-ads/retrieving){:target="_blank"}.
+Learn more about permissions [here](https://developers.facebook.com/docs/marketing-api/guides/lead-ads/retrieving){:target="_blank"}.
 **Use**
 Leads Access Permissions are required to retrieve leads generated by Facebook Lead Ads. This is the default permissions for most roles. Learn more about permissions by [following this link](https://www.facebook.com/business/help/1440176552713521){:target="_blank"}.