fix wrong script path

Author: Kevin Ongko

docs/index.html

@@ -126,7 +126,7 @@ <h1 class="title is-4">
 
     <script src="https://unpkg.com/accounting-js"></script>
     <script src="https://unpkg.com/vue"></script>
-    <script src="../dist/vue-numeric.min.js"></script>
+    <script src="https://unpkg.com/vue-numeric"></script>
 
     <script>
       Vue.use(VueNumeric.default)