More site updates; garter care page

A bevy of small improvements to the site today as I procrastinate more important tasks, including a revamp of the garter snake care page, which now has something above and beyond the downloadable PDF — links to sites and books about garters. At some point it will be replaced with the large-scale garter snake information site that I’ve been planning, off and on, for over three years, but at least this blows the dust off of what’s already there.