fix: getting startet with wrong javascript markup

Author: marcosmoura

docs/app/pages/GettingStarted.vue

@@ -28,7 +28,7 @@
       <code-example title="Individual components">
         import Vue from 'vue'
         import { MdButton, MdContent, MdTabs } from 'vue-material/components'
-        import vue-material/vue-material.css
+        import 'vue-material/vue-material.css'
 
         Vue.use(MdButton)
         Vue.use(MdContent)
@@ -39,7 +39,7 @@
       <code-example title="Full Bundle">
         import Vue from 'vue'
         import VueMaterial from 'vue-material'
-        import vue-material/vue-material.css
+        import 'vue-material/vue-material.css'
 
         Vue.use(VueMaterial)
       </code-example>