[tldoc] Czech / Slovak files

[Karl Berry]

    a copy of tex4ht.env with one line modified:

    i~/tex4ht.dir/texmf/tex4ht/ht-fonts/iso8859/2/!

It should not be necessary to modify tex4ht.env.  Have to consult with
Eitan on this and the other things.

    I think 7-bit version of README.CS is fine, everybody understands.

Ok, good, thanks.

    But the page is readable.

Glad to know that.  So I won't try to remake the images.  I think what
we have now is final.

If we succeed in making better HTML's later, we can always put them on
the web.

Thanks,
Karl