Document hyc command line options.
Document hyc command line options.

tianon/hy,timmartin/hy,farhaven/hy,aisk/hy,tuturto/hy,larme/hy,algernon/hy,farhaven/hy,kirbyfan64/hy,tianon/hy,Tritlo/hy,larme/hy,freezas/hy,adamfeuer/hy,aisk/hy,paultag/hy,gilch/hy,ALSchwalm/hy,jakirkham/hy,Foxboron/hy,michel-slm/hy,mtmiller/hy,Foxboron/hy,tianon/hy,aisk/hy,kirbyfan64/hy,larme/hy,kartikm/hy,zackmdavis/hy,farhaven/hy