It seems like we're using these differently than most readthedocs.org
users. Remove the borders and padding so they work better inline, and
prevent confusing word wraps.
This shows how to dynamically generate a plot in R+ggplot2, then embed
it into a latex document, and compile it to pdf, all with proper
autodependencies.
I also cleaned up the installation section and added links to various
competing redo implementations.
The new README.md is basically just link to the docs on
readthedocs.org, and a link to the mailing list.
These docs need a *lot* more work, but this is enough of an improvement
that I'll commit it anyway for now.
