(docs) Remove the noisy sidebar version note; change version to 3.0
(docs) Remove the noisy sidebar version note; change version to 3.0

puppetlabs/puppetdb,grimradical/puppetdb,ajroetker/puppetdb,rbrw/puppetdb,ajroetker/puppetdb,puppetlabs/puppetdb,kbrezina/puppetdb,waynr/puppetdb,ajroetker/puppetdb,kbrezina/puppetdb,senior/puppetdb,grimradical/puppetdb,highb/puppetdb,grimradical/puppetdb,mullr/puppetdb,waynr/puppetdb,waynr/puppetdb,mullr/puppetdb,highb/puppetdb,wkalt/puppetdb,kbrezina/puppetdb,wkalt/puppetdb,puppetlabs/puppetdb,highb/puppetdb,kbarber/puppetdb,ajroetker/puppetdb,rbrw/puppetdb,rbrw/puppetdb,rbrw/puppetdb,wkalt/puppetdb,kbarber/puppetdb,waynr/puppetdb,kbarber/puppetdb,puppetlabs/puppetdb,senior/puppetdb,kbrezina/puppetdb,senior/puppetdb,highb/puppetdb,rbrw/puppetdb,mullr/puppetdb,kbarber/puppetdb,grimradical/puppetdb,wkalt/puppetdb,puppetlabs/puppetdb,senior/puppetdb,mullr/puppetdb,mullr/puppetdb