fix: Support config.yml, config.yaml (#111)

Author: baijiangjie

apps/smartdoc/conf.py

@@ -174,7 +174,7 @@ def from_yaml(self, filename, silent=False):
         return True
 
     def load_from_yml(self):
-        for i in ['config_example.yml', 'config.yaml']:
+        for i in ['config_example.yml', 'config.yaml', 'config.yml']:
             if not os.path.isfile(os.path.join(self.root_path, i)):
                 continue
             loaded = self.from_yaml(i)
@@ -197,7 +197,8 @@ def load_user_config(cls, root_path=None, config_class=None):
 
             Error: No config file found.
 
-            You can run `cp config_example.yml {root_path}/config_example.yml`, and edit it.
+            You can run `cp config_example.yml {root_path}/config.yml`, and edit it.
+
             """
             raise ImportError(msg)
         return config