include var for hosted platform link [#118436273]

Author: pspinrad

Diff for: deploy-apps/routes-domains.html.md.erb

@@ -533,6 +533,8 @@ The domain `foo.myapp.<%=vars.app_domain%>` is the child subdomain of `myapp.<%=
 
 To create customized access to your apps, you can map specific or wildcard custom domains to <%=vars.product_short%> by using your DNS provider.
 
+<%=vars.domains_on_hosted%>
+
 #### <a id='subdomain-dns'></a>Mapping Domains to Your Custom Domain ####
 
 To associate a registered domain name with a domain on <%=vars.product_short%>, configure a CNAME record with your DNS provider, pointing at any shared domain offered in <%=vars.product_short%>.