Fixed some typos
Fixed some typos

itxd/angularfire,cesarmarinhorj/angularfire,bpietravalle/angularfire,douglascorrea/angularfire,douglascorrea/angularfire,nbr1ninrsan2/angularfire,cesarmarinhorj/angularfire,itxd/angularfire,jamestalmage/angularfire,yoda-yoda/angularfire,yoda-yoda/angularfire,denisKaranja/angularfire,bpietravalle/angularfire,fbentz/angularfire,FirebaseExtended/angularfire,nbr1ninrsan2/angularfire,FirebaseExtended/angularfire,nbr1ninrsan2/angularfire,fbentz/angularfire,jamestalmage/angularfire,yoda-yoda/angularfire,bpietravalle/angularfire,itxd/angularfire,FirebaseExtended/angularfire,jamestalmage/angularfire,douglascorrea/angularfire,cesarmarinhorj/angularfire,denisKaranja/angularfire,denisKaranja/angularfire,fbentz/angularfire