<command arg="-root"/>
- <video href="http://www.youtube.com/watch?v=1qRCviRmsTY"/>
+ <video href="https://www.youtube.com/watch?v=1qRCviRmsTY"/>
<hgroup>
<vgroup>
another, one disk at a time, with no disk ever resting on a disk
smaller than itself.
-http://en.wikipedia.org/wiki/Tower_of_Hanoi
+https://en.wikipedia.org/wiki/Tower_of_Hanoi
Written by Dave Atkinson; 2005.
</_description>