Change recommended links to jsDelivr

Author: LukasDrgon

src/v2/guide/installation.md

@@ -35,9 +35,9 @@ Simply download and include with a script tag. `Vue` will be registered as a glo
 
 ### CDN
 
-Recommended: [https://unpkg.com/vue](https://unpkg.com/vue), which will reflect the latest version as soon as it is published to npm. You can also browse the source of the npm package at [https://unpkg.com/vue/](https://unpkg.com/vue/).
+Recommended:[https://cdn.jsdelivr.net/npm/vue](https://cdn.jsdelivr.net/npm/vue), which will reflect the latest version as soon as it is published to npm. You can also browse the source of the npm package at [https://www.jsdelivr.com/package/npm/vue/](https://www.jsdelivr.com/package/npm/vue/).
 
-Also available on [jsDelivr](https://cdn.jsdelivr.net/npm/vue/dist/vue.js) or [cdnjs](https://cdnjs.cloudflare.com/ajax/libs/vue/{{vue_version}}/vue.js), but these two services take some time to sync so the latest release may not be available yet.
+Also available on [cdnjs](https://cdnjs.cloudflare.com/ajax/libs/vue/{{vue_version}}/vue.js), but this service takes some time to sync so the latest release may not be available yet.
 
 ## NPM
 
@@ -67,7 +67,7 @@ $ npm run dev
 
 ## Explanation of Different Builds
 
-In the [`dist/` directory of the NPM package](https://unpkg.com/vue@latest/dist/) you will find many different builds of Vue.js. Here's an overview of the difference between them:
+In the [`dist/` directory of the NPM package](https://cdn.jsdelivr.net/npm/vue/dist/) you will find many different builds of Vue.js. Here's an overview of the difference between them:
 
 | | UMD | CommonJS | ES Module |
 | --- | --- | --- | --- |
@@ -84,7 +84,7 @@ In the [`dist/` directory of the NPM package](https://unpkg.com/vue@latest/dist/
 
 - **Runtime**: code that is responsible for creating Vue instances, rendering and patching virtual DOM, etc. Basically everything minus the compiler.
 
-- **[UMD](https://github.com/umdjs/umd)**: UMD builds can be used directly in the browser via a `<script>` tag. The default file from Unpkg CDN at [https://unpkg.com/vue](https://unpkg.com/vue) is the Runtime + Compiler UMD build (`vue.js`).
+- **[UMD](https://github.com/umdjs/umd)**: UMD builds can be used directly in the browser via a `<script>` tag. The default file from jsDelivr CDN at [https://cdn.jsdelivr.net/npm/vue](https://cdn.jsdelivr.net/npm/vue) is the Runtime + Compiler UMD build (`vue.js`).
 
 - **[CommonJS](http://wiki.commonjs.org/wiki/Modules/1.1)**: CommonJS builds are intended for use with older bundlers like [browserify](http://browserify.org/) or [webpack 1](https://webpack.github.io). The default file for these bundlers (`pkg.main`) is the Runtime only CommonJS build (`vue.runtime.common.js`).