<command arg="-root"/>
- <video href="http://www.youtube.com/watch?v=RJjbRV0FC_A"/>
+ <video href="https://www.youtube.com/watch?v=RJjbRV0FC_A"/>
<hgroup>
<vgroup>
Roessler, Birkhoff and Duffing, and can discover entirely new
attractors by itself.
-http://en.wikipedia.org/wiki/Attractor#Strange_attractor
+https://en.wikipedia.org/wiki/Attractor#Strange_attractor
Written by Tim Auckland; 1998.
</_description>