remove get started nav tree and direct link to learn
remove get started nav tree and direct link to learn

mitchellh/vagrant,mitchellh/vagrant,marxarelli/vagrant,chrisroberts/vagrant,sni/vagrant,chrisroberts/vagrant,chrisroberts/vagrant,marxarelli/vagrant,mitchellh/vagrant,mitchellh/vagrant,sni/vagrant,chrisroberts/vagrant,sni/vagrant,sni/vagrant,marxarelli/vagrant,marxarelli/vagrant