allow running with SSL via commandline

docs/sanic/ssl.rst

@@ -9,4 +9,12 @@ Optionally pass in an SSLContext:
   context = ssl.create_default_context(purpose=ssl.Purpose.CLIENT_AUTH)
   context.load_cert_chain("/path/to/cert", keyfile="/path/to/keyfile")
 
-  app.run(host="0.0.0.0", port=8443, ssl=context)
+  app.run(host="0.0.0.0", port=8443, ssl=context)
+
+You can also pass in the locations of a certificate and key as a dictionary:
+
+
+.. code:: python
+
+  ssl = {'cert': "/path/to/cert", 'key': "/path/to/keyfile"}
+  app.run(host="0.0.0.0", port=8443, ssl=ssl)