[Doc]: Fix docs and docstring of config (#497)

docs/zh_cn/tutorials/config.md

@@ -5,22 +5,22 @@ MMEngine 实现了抽象的配置类（Config），为用户提供统一的配
 在开始教程之前，我们先将教程中需要用到的配置文件下载到本地（建议在临时目录下执行，方便后续删除示例配置文件）：
 
 ```bash
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/config_sgd.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/cross_repo.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/custom_imports.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/demo_train.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/example.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/learn_read_config.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/my_module.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/optimizer_cfg.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/predefined_var.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/refer_base_var.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/resnet50_delete_key.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/resnet50_lr0.01.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/resnet50_runtime.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/resnet50.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/runtime_cfg.py
-wget https://raw.githubusercontent.com/open-mmlab/mmengine/HAOCHENY/config_docs/docs/resources/config/modify_base_var.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/config_sgd.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/cross_repo.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/custom_imports.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/demo_train.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/example.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/learn_read_config.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/my_module.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/optimizer_cfg.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/predefined_var.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/refer_base_var.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/resnet50_delete_key.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/resnet50_lr0.01.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/resnet50_runtime.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/resnet50.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/runtime_cfg.py
+wget https://raw.githubusercontent.com/open-mmlab/mmengine/main/docs/resources/config/modify_base_var.py
 ```
 
 ## 配置文件读取

mmengine/hub/hub.py

@@ -21,10 +21,9 @@ def get_config(cfg_path: str, pretrained: bool = False) -> Config:
             by ``cfg.model_path``. Defaults to False.
 
     Examples:
-        >>> cfg = get_config('mmdet::faster_rcnn/faster_rcnn_r50_fpn_1x_coco',
-        >>>                  pretrained=True)
+        >>> cfg = get_config('mmdet::faster_rcnn/faster_rcnn_r50_fpn_1x_coco.py', pretrained=True)
         >>> # Equivalent to
-        >>> Config.fromfile('/path/to/faster_rcnn_r50_fpn_1x_coco.py')
+        >>> # cfg = Config.fromfile('/path/to/faster_rcnn_r50_fpn_1x_coco.py')
         >>> cfg.model_path
         https://download.openmmlab.com/mmdetection/v2.0/faster_rcnn/faster_rcnn_r50_fpn_1x_coco/faster_rcnn_r50_fpn_1x_coco_20200130-047c8118.pth
 
@@ -65,9 +64,14 @@ def get_model(cfg_path: str, pretrained: bool = False, **kwargs):
         pretrained (bool): Whether to load pretrained model. Defaults to False.
         kwargs (dict): Default arguments to build model.
 
+    Examples:
+        >>> model = get_model('mmdet::faster_rcnn/faster-rcnn_r50_fpn_1x_coco.py', pretrained=True)
+        >>> type(model)
+        <class 'mmdet.models.detectors.faster_rcnn.FasterRCNN'>
+
     Returns:
         nn.Module: Built model.
-    """
+    """  # noqa E301
     package = cfg_path.split('::')[0]
     with DefaultScope.overwrite_default_scope(package):  # type: ignore
         cfg = get_config(cfg_path, pretrained)