Initial commit
Link to the rendered site
adding git folder
merging old files
shell/*: Use reference-style links

This makes reading the source easier, because the long URLs aren't
breaking up your sentences.  It also isolates textual changes from URL
changes in diffs.
Merge remote-tracking branch 'christina/master' into 2014-03-uwash

* christina/master:
  adding git folder
  shell/00-intro.md: Use reference-style links
  Link to the rendered site
  Initial commit