Uses "Github flavored markdown". Specifically, code blocks are opened
using ```scheme so that Github will lex and format them as Scheme code
rather than generic monospace.
Note: I would have used ```racket, but we are still waiting for the
pygments.rb project to pull again from pygments-main -- to which I
contributed a Racket lexer back in August. After pygments.rb pulls,
can update this to use ```racket instead.
This should probably become documented if it's stable enough. For now
it's intended for building wrapping functions, so it's only documented
in comments the file.
* Lists are now either blocks or splices depending on whether they
appear inside a block or a splice (default to block).
* Adjusted the docs and a single test where this mattered.
* Change the documentation to be "text.html" and to be titled "text
generation".
