Include instruction to install the vagrant-berkshelf plugin for those who do not have it already installed.
Include instruction to install the vagrant-berkshelf plugin for those who do not have it already installed.

bbuneci/overholt,qpxu007/overholt,jamesblunt/overholt,qpxu007/overholt,jstacoder/overholt,mattupstate/overholt,alexmerser/overholt,peterlada/backend,jamesblunt/overholt,alexmerser/overholt,jstacoder/overholt,mattupstate/overholt,mattupstate/overholt,jamesblunt/overholt,RohithKP/overholt,manhtuhtk/overholt,RohithKP/overholt,peterlada/backend,manhtuhtk/overholt,peterlada/backend,beni55/overholt,bbuneci/overholt,manhtuhtk/overholt,jstacoder/overholt,beni55/overholt,qpxu007/overholt,bbuneci/overholt,qpxu007/overholt,bbuneci/overholt,beni55/overholt,alexmerser/overholt,mattupstate/overholt,jamesblunt/overholt,alexmerser/overholt,beni55/overholt,RohithKP/overholt,RohithKP/overholt,manhtuhtk/overholt,jstacoder/overholt