Added link to ottr app

src/views/Applications.vue

@@ -17,6 +17,22 @@
           Android
         </h2>
         <div class="apps-list">
+          <div class="app-card">
+            <div class="img-wrapper"><img src="../assets/apps/otter.png" /></div>
+            <div class="content">
+              <h3>
+                <a href="https://play.google.com/store/apps/details?id=com.github.apognu.otter" target="blank" rel="noopener">
+                  Otter
+                </a>
+              </h3>
+              <div class="tags">
+                <span class="tag">Free</span>
+                <span class="tag">Beta</span>
+                <a class="tag" href="https://play.google.com/store/apps/details?id=com.github.apognu.otter" target="_blank"><i class="fa fa-google"></i> Google Play</a>
+                <a class="tag" href="https://github.com/apognu/otter/" target="_blank"><i class="fa fa-code"></i> Source</a>
+              </div>
+            </div>
+          </div>
           <div class="app-card">
             <div class="img-wrapper"><img src="../assets/apps/dsub.png" /></div>
             <div class="content">