docs: update for 1.2.1-nightly-1898
docs: update for 1.2.1-nightly-1898

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