docs(autojump): fix outdated links and update description (#11289)

plugins/asdf/README.md

@@ -6,22 +6,25 @@ Adds integration with [asdf](https://github.com/asdf-vm/asdf), the extendable ve
 
 ### Installation
 
-1. Enable the plugin by adding it to your `plugins` definition in `~/.zshrc`.
+1. [Download asdf](https://asdf-vm.com/guide/getting-started.html#_2-download-asdf) by running the following:
 
   ```
-  plugins=(asdf)
+  git clone https://github.com/asdf-vm/asdf.git ~/.asdf
   ```
 
-2. [Install asdf](https://github.com/asdf-vm/asdf#setup) by running the following:
+2. [Enable asdf](https://asdf-vm.com/guide/getting-started.html#_3-install-asdf) by adding it to your `plugins` definition in `~/.zshrc`.
+
   ```
-  git clone https://github.com/asdf-vm/asdf.git ~/.asdf
+  plugins=(asdf)
   ```
 
 ### Usage
 
-See the [asdf usage documentation](https://github.com/asdf-vm/asdf#usage) for information on how to use asdf:
+See the [asdf documentation](https://asdf-vm.com/guide/getting-started.html#_4-install-a-plugin) for information on how to use asdf:
 
 ```
-asdf plugin-add nodejs git@github.com:asdf-vm/asdf-nodejs.git
-asdf install nodejs 5.9.1
+asdf plugin add nodejs https://github.com/asdf-vm/asdf-nodejs.git
+asdf install nodejs latest
+asdf global nodejs latest
+asdf local nodejs latest
 ```