zuse: fix outdated docs on vanes [ci skip]
The documentation on vanes in the header of zuse.hoon hadn't been
updated since before the introduction of %iris.
:: or classes).
::
:: each of these stages is split into cores for each of
-:: arvo's eight major vanes (kernel modules). these are:
+:: arvo's nine major vanes (kernel modules). these are:
::
:: - %ames: networking (rhymes with "games")
:: - %behn: scheduling ("bane")
:: - %clay: revision control ("play")
:: - %dill: console ("pill")
-:: - %eyre: web ("fair")
+:: - %eyre: http server ("fair")
:: - %ford: build ("lord")
:: - %gall: application ("ball")
+:: - %iris: http client ("virus")
:: - %jael: security ("jail")
::
:: with %zuse in your core, the engines of any vane are
