Add Homebrew install instruction (#164)

Author: kidonng

installation/desktop/macos.mdx

@@ -32,6 +32,14 @@ Please click the button below to download the installation package for MacOS **C
     <p className="prose" style={{ margin: 0, fontSize: "0.8rem" }}>Download for MacOS</p>
 </a>
 
+## Install via Homebrew
+
+ComfyUI Desktop can also be installed via [Homebrew](https://brew.sh/):
+
+```
+brew install comfyui
+```
+
 ## ComfyUI Desktop Installation Steps
 
 Double-click the downloaded installation package file. As shown in the image, drag the **ComfyUI** application into the **Applications** folder following the arrow

zh-CN/installation/desktop/macos.mdx

@@ -30,6 +30,14 @@ ComfyUI 桌面版是一个开源项目，完整代码请访问[这里](https://g
     <p className="prose" style={{ margin: 0, fontSize: "0.8rem" }}>Download for macOS</p>
 </a>
 
+## 通过 Homebrew 安装
+
+ComfyUI 桌面版也可通过 [Homebrew](https://brew.sh/) 安装：
+
+```
+brew install comfyui
+```
+
 ## ComfyUI 桌面版安装步骤
 
 1.  双击下载到的安装包文件。