switch hello-world tag to PascalCase (#951)

hootlex · LinusBorg · commit 05148da1757f · 2017-10-09T10:07:05.000+02:00
diff --git a/template/src/App.vue b/template/src/App.vue
@@ -4,7 +4,7 @@
     {{#router}}
     <router-view/>
     {{else}}
-    <hello-world/>
+    <HelloWorld/>
     {{/router}}
   </div>
 </template>
