improve doc and remove warnings

sanic/config.py

@@ -195,7 +195,7 @@ class Config(dict):
 
     def load_environment_vars(self):
         """
-        Looks for any SANIC_ prefixed environment variables and applies
+        Looks for any ``SANIC_`` prefixed environment variables and applies
         them to the configuration if present.
         """
         for k, v in os.environ.items():

sanic/exceptions.py

@@ -206,8 +206,8 @@ class Unauthorized(SanicException):
     :param scheme: Name of the authentication scheme to be used.
     :param realm: Description of the protected area. (optional)
     :param challenge: A dict containing values to add to the WWW-Authenticate
-    header that is generated. This is especially useful when dealing with the
-    Digest scheme. (optional)
+                      header that is generated. This is especially useful when dealing with the
+                      Digest scheme. (optional)
     """
     pass
 
@@ -230,9 +230,10 @@ def abort(status_code, message=None):
     """
     Raise an exception based on SanicException. Returns the HTTP response
     message appropriate for the given status code, unless provided.
+
     :param status_code: The HTTP status code to return.
     :param message: The HTTP response body. Defaults to the messages
-    in response.py for the given status code.
+                    in response.py for the given status code.
     """
     if message is None:
         message = COMMON_STATUS_CODES.get(status_code,