update CLI docs link

Author: yyx990803

src/v2/guide/installation.md

@@ -58,7 +58,7 @@ $ npm install vue
 
 ## CLI
 
-Vue provides an [official CLI](https://github.com/vuejs/vue-cli) for quickly scaffolding ambitious Single Page Applications. It provides batteries-included build setups for a modern frontend workflow. It takes only a few minutes to get up and running with hot-reload, lint-on-save, and production-ready builds. See [the Vue CLI docs](https://github.com/vuejs/vue-cli/blob/dev/docs/README.md#introduction) for more details.
+Vue provides an [official CLI](https://github.com/vuejs/vue-cli) for quickly scaffolding ambitious Single Page Applications. It provides batteries-included build setups for a modern frontend workflow. It takes only a few minutes to get up and running with hot-reload, lint-on-save, and production-ready builds. See [the Vue CLI docs](https://cli.vuejs.org) for more details.
 
 <p class="tip">The CLI assumes prior knowledge of Node.js and the associated build tools. If you are new to Vue or front-end build tools, we strongly suggest going through <a href="./">the guide</a> without any build tools before using the CLI.</p>