Update docs

Author: Godofbrowser

src/docs/index.html

@@ -10,7 +10,7 @@
 
 <script src="https://unpkg.com/vue@2.4.2/dist/vue.min.js"></script>
 <script type="text/javascript" src="../dist/vuejs-dialog.min.js"></script>
-<script>window.VuejsDialog || document.write('<script type="text/javascript" src="https://cdn.rawgit.com/Godofbrowser/vuejs-dialog/v0.1.7/dist/vuejs-dialog.min.js">\x3C/script>')</script>
+<script>window.VuejsDialog || document.write('<script type="text/javascript" src="https://cdn.rawgit.com/Godofbrowser/vuejs-dialog/v0.1.8/dist/vuejs-dialog.min.js">\x3C/script>')</script>
 <script>
     (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
             (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),