docs: Mention homebrew

Author: jcs090218

docs/content/Getting-Started/Install-Eask/_index.en.md

@@ -58,6 +58,12 @@ nix profile install nixpkgs#eask-cli
 [Homebrew][] is a free and open-source package manager for macOS and Linux.
 To install the Eask CLI:
 
+```sh
+brew install eask-cli
+```
+
+Or using the tap provided by us:
+
 ```sh
 brew tap emacs-eask/cli https://github.com/emacs-eask/packaging
 brew install eask-cli

docs/content/Getting-Started/Install-Eask/_index.zh-tw.md

@@ -54,6 +54,12 @@ nix profile install nixpkgs#eask-cli
 [Homebrew][] 是一個適用於 macOS 和 Linux 的免費開源套件管理器。
 若要安裝 Eask CLI，請執行下列操作：
 
+```sh
+brew install eask-cli
+```
+
+或使用我們提供的 tap：
+
 ```sh
 brew tap emacs-eask/cli https://github.com/emacs-eask/packaging
 brew install eask-cli