latexsupport: image support
latexsupport: added in README
docs: minor tweaks to sc21.tex
latexsupport: README updated with more info
latexsupport: tidying up various latex and tex4ht files

Moved most of the css commands into their own .css files.
Increased the amount of comments and fixed up the spacing a little.
latexsupport: added some useful tex4ht configs
latexsupport:minor tweak to toc and section heads
doc:sun95 remove typo in contour sst
latexsupport: sstusage should not have 8% font-size
latexsupport: change caret character
latexsupport: allow side by side images

starlinkxhtml.cfg updated to include a forcing out of vmode
in the configure pictures section. This prevents imgs from being
wrapped in a <p> tag, preventing side by side placement.
latexsupport: update README with correct commandline option

If the charset="utf-8" flag isn't given, accented characters don't work.