clarify hubspot custom properties requirements

Author: terence1988

src/connections/sources/catalog/cloud-apps/hubspot/index.md

@@ -61,7 +61,7 @@ Due to HubSpot's [API Rate Limits](http://developers.hubspot.com/apps/api_guidel
 
 Below are tables outlining the properties included in the collections listed above. To see the full description of each property, refer to the HubSpot documentation linked in the collections above.
 
-If you have Custom Properties on Contacts or Companies collections that you would like to sync, submit a ticket detailing the custom properties [here](http://segment.com/help/contact){:target="_blank"}.
+If you have Custom Properties on Contacts or Companies collections that you would like to sync, submit a ticket with HubSpot API names of the custom properties [here](http://segment.com/help/contact){:target="_blank"}.
 
 > info ""
 > For Deals collection, Segment retrieves properties that the HubSpot API returns, which means you can add the new fields on your own from HubSpot if you have the necessary permissions.