README.md: Remove nesting version-control/svn There's no need to hard-code target directories in this repository. Anyone consuming this material can use submodules and pick their own target directory.
version-control: Make README.md and instructor.md more generic Don't assume we're teaching Subversion when explaining why version control is important or what we expect students to get out of it. The Subversion-specific notes are now in the svn subdirectory.