Merge pull request #244 from h-enk/video-shortcode

✨ Adds video shortcode

Author: h-enk

layouts/shortcodes/video.html

@@ -0,0 +1,11 @@
+<div class="ratio ratio-{{ with .Get "ratio" }}{{.}}{{ end }}">
+  <video{{ with .Get "attributes" }} {{ . | safeHTMLAttr }}{{ end }}>
+    {{ with .Get "webm-src" -}}
+    <source src="{{ . | relURL }}" type="video/webm">
+    {{ end -}}
+    {{ with .Get "mp4-src" -}}
+    <source src="{{ . | relURL }}" type="video/mp4">
+    {{ end -}}
+    Sorry, your browser doesn't support embedded videos.
+  </video>
+</div>