Added footer links

src/components/footer.js

@@ -1,6 +1,12 @@
 import React from "react"
+import { Link } from "gatsby"
+
 export default () => (
   <div style={{ textAlign: `center` }}>
-    TeamSpeak.Discord.Steam.About.GitHub
+    <a href="ts3server://urbanbrothers.de">ts</a>.
+    <a href="https://discord.gg/k6TnPq">discord</a>.
+    <a href="https://steamcommunity.com/groups/urban_group">steam</a>.
+    <a href="https://github.com/creyD/urban_website">github</a>.
+    <Link to="/about/">about</Link>
   </div>
 )

src/pages/about.js

@@ -1,7 +1,9 @@
 import React from "react"
+import Header from "../components/header"
+
 export default () => (
   <div>
-    <h1>About</h1>
+    <Header headline="About" />
     // TODO Impressum
   </div>
 )