initial support for video html tag and its attributes..

layouts/_default/_markup/render-image.html

@@ -10,6 +10,11 @@
   {{- $img_src := index (split $img_params " ") 0 -}}
   {{- $img_attr := index (split $img_params $img_src) 1 -}}
 <img src="{{ $img_src }}" {{ $img_attr | safeHTMLAttr }} />
+{{- else if strings.HasPrefix .Destination "vid:" -}}
+  {{- $vid_params := (substr .Destination 4) -}}
+  {{- $vid_src := index (split $vid_params " ") 0 -}}
+  {{- $vid_attr := index (split $vid_params $vid_src) 1 -}}
+<video controls src="{{ $vid_src }}" {{ $vid_attr | safeHTMLAttr }}></video>
 {{- else if strings.HasPrefix .Destination "bib:" -}}
   {{- $destination := (substr .Destination 4) -}}
   {{- $c_prefix := .Page.Site.Params.sandpointsCatalogPrefix | default "/library/" -}}