add video shortcode

layouts/shortcodes/video.html

@@ -0,0 +1,19 @@
+<div class="container">
+  <div id="player-wrapper" class="{{ .Get 1 }}"></div>
+</div>
+
+<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@clappr/player@latest/dist/clappr.min.js">
+</script>
+
+<script>
+  var playerElement = document.getElementById("player-wrapper");
+
+  var player = new Clappr.Player({
+    source: {{ .Get 0 }},
+  mute: true,
+    height: 360,
+      width: 640
+  });
+
+  player.attachTo(playerElement);
+</script>