(MAINT) Fix broken links to Beaker docs in README (#84)
(MAINT) Fix broken links to Beaker docs in README (#84)

* Fix broken link to Vagrant node examples in README

Beaker recently reorganized the directory structure of their docs, which broke this link.

See: https://github.com/puppetlabs/beaker/commit/f3e01b0c3ef1ab02776b0f0a5f76d3a848e5d279

* Fix broken link to beaker command line docs

The old link goes to an empty wiki page, this fixes the link to point to the new page.

puppetlabs/beaker-rspec