<command arg="-root"/>
- <video href="http://www.youtube.com/watch?v=HMPVzQUGW-Q"/>
+ <video href="https://www.youtube.com/watch?v=HMPVzQUGW-Q"/>
<hgroup>
<vgroup>
<_description>
A grid of hexagons or other shapes, with tiles dropping out.
-http://en.wikipedia.org/wiki/Tiling_by_regular_polygons
+https://en.wikipedia.org/wiki/Tiling_by_regular_polygons
Written by Jamie Zawinski; 2013.
</_description>