Get rid of the <base> element and rely on flat structure
Get rid of the <base> element and rely on flat structure

With a base element, intra-page links (i.e., fragment identifiers)
will inconveniently be relative to the base href rather than the
current page.

Since all the content is in the top directory, we can just use
relative links.

(Jekyll's local webserver will serve /swarm.html given thr URL
/swarm/, which was a factor in using the base element; github pages
doesn't do this though.)

squaremo/ambergreen,squaremo/ambergreen,squaremo/ambergreen,squaremo/ambergreen,squaremo/ambergreen