At the page "Overview of Ghostscript" [1] find /GPL Ghostscript and commerical Ghostscript/ replace /commerical/commercial/ [1] <file:/usr/share/doc/packages/ghostscript-library/doc/Readme.htm>
fix committed as r11277 . I am closing the bug as fixed; but feel free to make a comment here for further typos (and no need to file new bugs). The only issue being that I'd prefer to deal with a bigger bunch of typos than just one. Supplying a patch would be even better.