DOCSP-47007 DNS Service Discovery (#533)

* DOCSP-47007 DNS Service Discovery

* slow build

Author: lindseymoore

source/connect/connection-targets.txt

@@ -124,6 +124,17 @@ following behavior:
 
    .. sharedinclude:: dbx/docker-replica-set.rst
 
+DNS Service Discovery
+---------------------
+
+.. sharedinclude:: dbx/srv-polling.rst
+
+   .. replacement:: srv-uri
+
+      .. code-block:: go
+
+         uri := "mongodb+srv://<hostname>/"
+
 API Documentation
 -----------------
 
@@ -134,4 +145,3 @@ To learn more about connecting to different MongoDB instances with a
   - `options <https://mongodb.github.io/node-mongodb-native/6.17/classes/MongoClient.html#options>`__
   - `connect <https://mongodb.github.io/node-mongodb-native/6.17/classes/MongoClient.html#connect>`__
   - `readPreference <https://mongodb.github.io/node-mongodb-native/6.17/classes/MongoClient.html#readPreference>`__
-