Added newline in numpy lesson to fix formatting
Updates bootcamp site address.
Bugfix: code block not rendering in 02-func
Bugfix: code blocks not rendering in novice/python/03-loop
Bugfix: code block not rendering in novice/python/04-cond
Fix rendering of code block

Also add $ to tell input from output
Bugfix: missing file `fractal_1.txt` replaced with `small-01.csv`
Adds Intro to Git material up to reverting changes.
Provides a link to the bootcamp Etherpad.
Revised (shortened) overview.html