Add README.md files for specific technology areas (Ansible, CentOS Atomic Host, Consul, CoreOS, Debian, Docker, and etcd).
Signed-off-by: Scott Lowe <scott.lowe@scottlowe.org>
Remove references to personally-maintained Vagrant boxes ("slowe/*"), replacing them with "bento/*" instead. Changes found in YAML/JSON data files as well as in some Vagrantfiles and in all applicable README files.
Signed-off-by: Scott Lowe <scott.lowe@scottlowe.org>