started routing

src/components/nav/HeaderMenu.vue

@@ -1,19 +1,48 @@
 <template>
-  <nav id="">
+  <nav id="header-menu">
     <ul>
-      <li><a href="#">Index</a></li>
-      <li><a href="#">Bibliographie</a></li>
-      <li><a href="#">Blog</a></li>
+      <li>
+        <span>Index</span>
+        <ul>
+          <li>
+            <router-link to="/nominum">
+              Nominum
+            </router-link>
+          </li>
+          <li>
+            <router-link to="/locorum">
+              Locorum
+            </router-link>
+          </li>
+          <li>
+            <router-link to="/operum">
+              Operum
+            </router-link>
+          </li>
+        </ul>
+      </li>
+      <li>
+        <router-link to="/bibliographie">
+          Bibliographie
+        </router-link>
+      </li>
+      <li>
+        <a href="#">Blog</a>
+      </li>
     </ul>
   </nav>
 </template>
+
 <script>
+
 export default {
   name: 'HeaderMenu',
   data: () => ({
 
   })
 }
+
 </script>
+
 <style lang="scss" scoped>
 </style>