version-control/README.md: Add a motivational paragraph
authorW. Trevor King <wking@tremily.us>
Mon, 24 Jun 2013 13:55:13 +0000 (09:55 -0400)
committerW. Trevor King <wking@tremily.us>
Wed, 23 Oct 2013 04:05:43 +0000 (21:05 -0700)
commitca811b7addcea572849b180ae6cb2d5fef5ecdea
treef38b5bfdaf79723a9cfe40c04818fe21dc75589d
parent0230d340d3526c406fdc2affc2f02fe4d8cfc9e2
parent397675597471fd06c175ef4dcb5c87a4ae169d56
version-control/README.md: Add a motivational paragraph

The text is adapted from 3976755 (Added the file for lesson 2,
2012-02-04), which I cherry picked out of boot-camps (where it is
d48ceea) [1].

[1] https://github.com/swcarpentry/boot-camps
version-control/README.md