updated docs

Author: TomPallister

docs/features/servicediscovery.rst

@@ -25,9 +25,12 @@ Then add the following to your ConfigureServices method.
 The following is required in the GlobalConfiguration. The Provider is required and if you do not specify a host and port the Consul default
 will be used.
 
+Please note the Scheme option defauls to HTTP. It was added in this `PR <https://github.com/ThreeMammals/Ocelot/pull/1154>`_. It defaults to HTTP to not introduce a breaking change.
+
 .. code-block:: json
 
     "ServiceDiscoveryProvider": {
+        "Scheme": "https",
         "Host": "localhost",
         "Port": 8500,
         "Type": "Consul"