update jsfiddles to use unpkg instead of npmcdn

Author: chrisvfritz

src/guide/index.md

@@ -12,7 +12,7 @@ If you are an experienced frontend developer and want to know how Vue compares t
 
 ## Getting Started
 
-The easiest way to try out Vue.js is using the [JSFiddle Hello World example](https://jsfiddle.net/chrisvfritz/ng41aepx/). Feel free to open it in another tab and follow along as we go through some basic examples. If you prefer downloading / installing from a package manager, check out the [Installation](/guide/installation.html) page.
+The easiest way to try out Vue.js is using the [JSFiddle Hello World example](https://jsfiddle.net/chrisvfritz/4tpzm3e1/). Feel free to open it in another tab and follow along as we go through some basic examples. If you prefer downloading / installing from a package manager, check out the [Installation](/guide/installation.html) page.
 
 ## Declarative Rendering
 

src/guide/transitioning-state.md

@@ -374,7 +374,7 @@ function generatePoints (stats) {
 </style>
 {% endraw %}
 
-See [this fiddle](https://jsfiddle.net/chrisvfritz/fbvusejy/) for the complete code behind the above demo.
+See [this fiddle](https://jsfiddle.net/chrisvfritz/65gLu2b6/) for the complete code behind the above demo.
 
 ## Organizing Transitions into Components
 

src/guide/transitions.md

@@ -1247,7 +1247,7 @@ new Vue({
 
 <p class="tip">One important note is that these FLIP transitions do not work with elements set to `display: inline`. As an alternative, you can use `display: inline-block` or place elements in a flex context.</p>
 
-These FLIP animations are also not limited to a single axis. Items in a multidimensional grid can transitioned [just as easily](https://jsfiddle.net/chrisvfritz/a2ngorat/):
+These FLIP animations are also not limited to a single axis. Items in a multidimensional grid can transitioned [just as easily](https://jsfiddle.net/chrisvfritz/sLrhk1bc/):
 
 {% raw %}
 <div id="sudoku-demo" class="demo">