Updating docs for Facebook Lead ads (#4168)

* Updating docs for Facebook Lead ads

* Apply suggestions from code review

Co-authored-by: rchinn-segment <93161299+rchinn-segment@users.noreply.github.com>

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Co-authored-by: Sai Gattu <sai.gattu@segment.com>
Co-authored-by: markzegarelli <mark.zegarelli@segment.com>
Co-authored-by: rchinn-segment <93161299+rchinn-segment@users.noreply.github.com>

Author: 4 people

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

@@ -26,10 +26,15 @@ Segment lets you make the most of your leads by automatically sending them to yo
 
 ### Permissions
 **Setup**
-Admin permissions are required for setup. Advertiser or lower permissions will prevent the source from connecting.
-
+Use the following permissions to access the page and lead information for enrichment purposes with Facebook lead ads. You must have the following permissions to set this source up:
+- pages_show_list
+- pages_read_engagement
+- 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"}.
 **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).
+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"}.
 
 ## Components