[Docs] macOS building notice (#2364)

README.md

@@ -60,7 +60,7 @@ There are two versions of MMCV:
 
 ### Install mmcv
 
-Before installing mmcv, make sure that PyTorch has been successfully installed following the [PyTorch official installation guide](https://github.com/pytorch/pytorch#installation). For macOS M1 users, please make sure you are using `PyTorch Nightly`.
+Before installing mmcv, make sure that PyTorch has been successfully installed following the [PyTorch official installation guide](https://github.com/pytorch/pytorch#installation). For apple silicon users, please use PyTorch 1.13+.
 
 The command to install mmcv on Linux or Windows platforms is as follows (if your system is macOS, please refer to [build mmcv from source](https://mmcv.readthedocs.io/en/2.x/get_started/build.html#macos-mmcv))
 

README_zh-CN.md

@@ -60,7 +60,7 @@ MMCV 有两个版本：
 
 ### 安装 mmcv
 
-在安装 mmcv 之前，请确保 PyTorch 已经成功安装在环境中，可以参考 [PyTorch 官方安装文档](https://github.com/pytorch/pytorch#installation)。
+在安装 mmcv 之前，请确保 PyTorch 已经成功安装在环境中，可以参考 [PyTorch 官方安装文档](https://github.com/pytorch/pytorch#installation)。如果你使用的是搭载 apple silicon 的 mac 设备，请安装 PyTorch 1.13+ 的版本。
 
 在 Linux 和 Windows 平台安装 mmcv 的命令如下（如果你的系统是 macOS，请参考[源码安装 mmcv](https://mmcv.readthedocs.io/zh_CN/2.x/get_started/build.html#macos-mmcv)）
 

docs/en/get_started/build.md

@@ -76,7 +76,7 @@ you can first install it before installing MMCV to skip the installation of `ope
 #### Build on macOS
 
 ```{note}
-If you are using a mac with an M1 chip, install the nightly version of PyTorch, otherwise you will encounter the problem in [issues#2218](https://github.com/open-mmlab/mmcv/issues/2218).
+If you are using a mac with apple silicon chip, install the PyTorch 1.13+, otherwise you will encounter the problem in [issues#2218](https://github.com/open-mmlab/mmcv/issues/2218).
 ```
 
 1. Clone the repo

docs/zh_cn/get_started/build.md

@@ -90,7 +90,7 @@ pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
 | TODO: 视频教程
 
 ```{note}
-如果你使用的 mac 是 M1 芯片，请安装 PyTorch 的 nightly 版本，否则会遇到 [issues#2218](https://github.com/open-mmlab/mmcv/issues/2218) 中的问题。
+如果你使用的是搭载 apple silicon 的 mac 设备，请安装 PyTorch 1.13+ 的版本，否则会遇到 [issues#2218](https://github.com/open-mmlab/mmcv/issues/2218) 中的问题。
 ```
 
 1. 克隆代码仓库