docs(lists): cleaning up some markup in the docs and added markup for inset list
docs(lists): cleaning up some markup in the docs and added markup for inset list

references driftyco/ionic2#866

driftyco/ionic-site,driftyco/ionic-site,driftyco/ionic-site,ionic-team/ionic-site,driftyco/ionic-site,ionic-team/ionic-site,ionic-team/ionic-site,ionic-team/ionic-site,driftyco/ionic-site