Refer to connection string manual page in Client constructor

docs/includes/apiargs-MongoDBClient-method-construct-param.yaml

@@ -3,8 +3,8 @@ name: $uri
 type: string
 description: |
   The URI of the standalone, replica set, or sharded cluster to which to
-  connect. Refer to the :manual:`MongoDB connection string reference
-  </reference/connection-string>` for formatting.
+  connect. Refer to :manual:`Connection String URI Format
+  </reference/connection-string>` in the MongoDB manual for more information.
 
   Defaults to ``"mongodb://127.0.0.1:27017"`` if unspecified.
 

docs/reference/method/MongoDBClient__construct.txt

@@ -126,3 +126,5 @@ See Also
 
 - :php:`MongoDB\\Driver\\Manager::__construct()
   <mongodb-driver-manager.construct>`
+- :manual:`Connection String URI Format </reference/connection-string>` in the
+  MongoDB manual