docs: add vfox to Download instructions (#6645)

* docs: add vfox to Download instructions

* fix

* fix lint

Author: ahai-code

pages/en/download/package-manager/all.md

@@ -30,6 +30,7 @@ title: Installing Node.js via package manager
 - [SmartOS and illumos](#smartos-and-illumos)
 - [Snap](#snap)
 - [Solus](#solus)
+- [vfox](#vfox)
 - [Void Linux](#void-linux)
 - [Windows](#windows-1)
 - [z/OS](#zos)
@@ -369,6 +370,16 @@ Solus provides Node.js in its main repository.
 sudo eopkg install nodejs
 ```
 
+## vfox
+
+A cross-platform(Windows, macOS, Linux) and **extendable** version manager.
+
+It allows you to **different versions for different projects**, **different versions for different shells**, and switch Node versions automatically based on the current directory, etc.
+
+It support all popular shells (Bash, Zsh, Fish, PowerShell, Clink, Cmder).
+
+See the [Quick Start](https://vfox.lhan.me/guides/quick-start.html) for quickly using vfox, and all the usage details.
+
 ## Void Linux
 
 Void Linux ships Node.js stable in the main repository.