Added Siriusmodeselektor showcase (#2354)

* Added screenshot of the site
* Moved `Tree Of Science` to row above

showcase/index.html

@@ -284,9 +284,6 @@
                 </div>
             </div>
         </div>
-    </div>
-
-    <div class="row">
         <div class="col-md-12 col-lg-6">
             <a href="http://treeofscience.ru">
                 <img src="./images/treeofscience.png" class="showcase img-responsive">
@@ -303,6 +300,23 @@
         </div>
     </div>
 
+    <div class="row">
+        <div class="col-md-12 col-lg-6">
+            <a href="http://sirius.modeselektor.com/">
+                <img src="./images/siriusmodeselektor.png" class="showcase img-responsive">
+            </a>
+            <div class="description">
+                <div class="descriptionHeader">
+                    <a href="http://sirius.modeselektor.com/"> Siriusmodeselektor</a>
+                </div>
+                <div class="descriptionContent">
+                    Siriusmodeselektor is a collaboration of two electronic music acts: Siriusmo and Modeselektor.
+                    The site is built around vis.Timeline and uses it to display dates and photos/videos from their tour in 2015.
+                </div>
+            </div>
+        </div>
+    </div>
+
 </div>
 </div>
 <br /><br /><br /><br />