More documentation

You can only learn programming from trying out your own programs, or tinkering with other people’s, and debugging them. Books come later. I say this because I have put up some more web pages under the title About RiscLua on my website. the latest RiscLua (544VFP-A) uses a StrongHelp file which is necessarily terser than the previous webpages, and now contains only a link to the Lua Reference Manual rather than a copy. So I felt more blurb might be useful. It may be expanded later, of course.