added blurb to catalog

Author: stayseesong

src/connections/reverse-etl/index.md

@@ -159,7 +159,7 @@ In order for Segment to compute the data changes within your warehouse, Segment
 > There may be cost implications to having Segment query your warehouse tables. 
 
 ## Segment Connections destination
-If you don’t see your destination listed in the [Reverse ETL catalog], use the [Segment Connections destination](/docs/connections/destinations/catalog/actions-segment/) to send data from your Reverse ETL warehouse to other destinations listed in the [catalog](/docs/connections/destinations/catalog/).  
+If you don’t see your destination listed in the Reverse ETL catalog, use the [Segment Connections destination](/docs/connections/destinations/catalog/actions-segment/) to send data from your Reverse ETL warehouse to other destinations listed in the [catalog](/docs/connections/destinations/catalog/).  
 
 The Segment Connections destination enables you to mold data extracted from your warehouse in [Segment Spec](/docs/connections/spec/) API calls that are then processed by [Segment’s HTTP Tracking API](/docs/connections/sources/catalog/libraries/server/http-api/). The requests hit Segment’s servers, and then Segment routes your data to any destination you want. Get started with the [Segment Connections destination](/docs/connections/destinations/catalog/actions-segment/). 	
 

src/connections/reverse-etl/reverse-etl-catalog.md

@@ -2,6 +2,9 @@
 title: Reverse ETL Catalog
 hidden: true
 ---
+
+These destinations support [Reverse ETL](/docs/connections/reverse-etl/). If you don’t see your destination listed in the Reverse ETL catalog, use the [Segment Connections destination](/docs/connections/destinations/catalog/actions-segment/) to send data from your Reverse ETL warehouse to other destinations listed in the [catalog](/docs/connections/destinations/catalog/).  
+
 <div class="destinations-catalog">
       <div class="flex flex--wrap waffle waffle--xlarge">
         {% assign destinations = site.data.catalog.destinations.items%}