add partial for how to enable app service discovery [#154251675]

Gemfile.lock

@@ -9,7 +9,7 @@ GEM
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
     ansi (1.5.0)
-    backports (3.11.0)
+    backports (3.11.1)
     bookbindery (10.1.12)
       ansi (~> 1.4)
       css_parser
@@ -52,12 +52,12 @@ GEM
     css_parser (1.6.0)
       addressable
     dotenv (2.2.1)
-    elasticsearch (6.0.0)
-      elasticsearch-api (= 6.0.0)
-      elasticsearch-transport (= 6.0.0)
-    elasticsearch-api (6.0.0)
+    elasticsearch (6.0.1)
+      elasticsearch-api (= 6.0.1)
+      elasticsearch-transport (= 6.0.1)
+    elasticsearch-api (6.0.1)
       multi_json
-    elasticsearch-transport (6.0.0)
+    elasticsearch-transport (6.0.1)
       faraday
       multi_json
     em-websocket (0.5.1)
@@ -153,7 +153,7 @@ GEM
       middleman-core (>= 3.2)
       rouge (~> 1.0)
     mini_portile2 (2.3.0)
-    minitest (5.11.1)
+    minitest (5.11.3)
     multi_json (1.13.1)
     multipart-post (2.0.0)
     nokogiri (1.8.1)

config/template_variables.yml

@@ -88,6 +88,7 @@ template_variables:
   domain_name: cloudfoundry.org
   domains_shared_domains:
   email_notifications:
+  enable_c2c_discovery: include three ops files in your CF deployment, as described in the <a href="https://github.com/cloudfoundry/cf-app-sd-release#deployment-instructions">CF App Service Discovery Release</a> on Github
   enable_syslog_drain: See the [Configuring System Logging](../running/managing-cf/logging-config.html) and [Using Log Management Services](../devguide/services/log-management.html) topics for more information.
   enable_syslog_forwarding_link: <p class="note"><strong>Note</strong>&#58; For this procedure to work, you must enable system log forwarding. For more information, see the <a href="https://docs.cloudfoundry.org/running/managing-cf/logging-config.html#syslog-forward"> Enabling System Log Forwarding</a>  topic. </p>
   example_domain_edu: www.example.edu