update powered-by

64json · 64json · commit 73df3cf7d9af · 2016-06-07T23:50:21.000+09:00
diff --git a/index.html b/index.html
@@ -77,6 +77,12 @@ <h3>
             <a href="https://github.com/jacomyal/sigma.js">
                 <button class="indent collapse">jacomyal/sigma.js</button>
             </a>
+            <a href="https://github.com/chartjs/Chart.js">
+                <button class="indent collapse">chartjs/Chart.js</button>
+            </a>
+            <a href="https://github.com/showdownjs/showdown">
+                <button class="indent collapse">showdownjs/showdown</button>
+            </a>
             <a href="https://github.com/FortAwesome/Font-Awesome">
                 <button class="indent collapse">FortAwesome/Font-Awesome</button>
             </a>
