Wrap lines at 80 columns in README source.
Wrap lines at 80 columns in README source.

Gives better readability in editors, and should have no effect on
rendered Markdown.

vijayviji/vagrant-vsphere,higebu/vagrant-vsphere,barklyprotects/vagrant-vsphere,lilirui/vagrant-vsphere,EdHurtig/vagrant-vsphere,discoposse/vagrant-vsphere,mkuzmin/vagrant-vsphere,edmcman/vagrant-vsphere