Add Xing

index.html

@@ -203,6 +203,10 @@
         <a class="button button-skoob" href="#" target="_blank" rel="noopener"><img class="icon" src="icons/skoob.svg" alt="Skoob Logo">Skoob</a>
           <br>
 
+        <!-- XING -->
+        <a class="button button-xing" href="#" target="_blank" rel="noopener"><img class="icon" src="icons/xing.svg" alt="xing Logo">Xing</a>
+          <br>
+
         <br>
         <br>
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