Replace cdn links in other files

Author: LukasDrgon

src/v2/guide/comparison.md

@@ -111,7 +111,7 @@ React is renowned for its steep learning curve. Before you can really get starte
 While Vue scales up just as well as, if not better than React, it also scales down just as well as jQuery. That's right - all you have to do is drop a single script tag into a page:
 
 ``` html
-<script src="https://unpkg.com/vue"></script>
+<script src="https://cdn.jsdelivr.net/npm/vue"></script>
 ```
 
 Then you can start writing Vue code and even ship the minified version to production without feeling guilty or having to worry about performance problems.

src/v2/guide/index.md

@@ -17,7 +17,7 @@ If you are an experienced frontend developer and want to know how Vue compares t
 The easiest way to try out Vue.js is using the [JSFiddle Hello World example](https://jsfiddle.net/chrisvfritz/50wL7mdz/). Feel free to open it in another tab and follow along as we go through some basic examples. Or, you can simply <a href="https://gist.githubusercontent.com/chrisvfritz/7f8d7d63000b48493c336e48b3db3e52/raw/ed60c4e5d5c6fec48b0921edaed0cb60be30e87c/index.html" target="_blank" download="index.html">create an <code>index.html</code> file</a> and include Vue with:
 
 ``` html
-<script src="https://unpkg.com/vue"></script>
+<script src="https://cdn.jsdelivr.net/npm/vue"></script>
 ```
 
 The [Installation](installation.html) page provides more options of installing Vue. Note that we **do not** recommend beginners to start with `vue-cli`, especially if you are not yet familiar with Node.js-based build tools.

src/v2/guide/typescript.md

@@ -14,7 +14,7 @@ We plan to move all official declarations to use ES-style exports in the future.
 
 A static type system can help prevent many potential runtime errors, especially as applications grow. That's why Vue ships with [official type declarations](https://github.com/vuejs/vue/tree/dev/types) for [TypeScript](https://www.typescriptlang.org/) - not only in Vue core, but also for [vue-router](https://github.com/vuejs/vue-router/tree/dev/types) and [vuex](https://github.com/vuejs/vuex/tree/dev/types) as well.
 
-Since these are [published on NPM](https://unpkg.com/vue/types/), and the latest TypeScript knows how to resolve type declarations in NPM packages, this means when installed via NPM, you don't need any additional tooling to use TypeScript with Vue.
+Since these are [published on NPM](https://cdn.jsdelivr.net/npm/vue/types/), and the latest TypeScript knows how to resolve type declarations in NPM packages, this means when installed via NPM, you don't need any additional tooling to use TypeScript with Vue.
 
 ## Recommended Configuration