chore(nav): improve doc wording
chore(nav): improve doc wording

AbraaoAlves/ionic,jhlee8804/ionic,joshesp/ionic,dennybiasiolli/ionic,alan-agius4/ionic,cambronjay/ionic,dennybiasiolli/ionic,janglednerves/ionic,cambronjay/ionic,manucorporat/ionic,TillaTheHun0/ionic,brianespinosa/ionic2-sass,jarrodkoch/ionic,driftyco/ionic,AbraaoAlves/ionic,AbraaoAlves/ionic,janglednerves/ionic,jhlee8804/ionic,TillaTheHun0/ionic,jhlee8804/ionic,manucorporat/ionic,janglednerves/ionic,alan-agius4/ionic,AbraaoAlves/ionic,driftyco/ionic,AbraaoAlves/ionic,alan-agius4/ionic,manucorporat/ionic,driftyco/ionic,TillaTheHun0/ionic,dennybiasiolli/ionic,alan-agius4/ionic,manucorporat/ionic,joshesp/ionic,joshesp/ionic,TillaTheHun0/ionic,dennybiasiolli/ionic,manucorporat/ionic,jhlee8804/ionic,joshesp/ionic,alan-agius4/ionic,jarrodkoch/ionic,janglednerves/ionic,jarrodkoch/ionic,cambronjay/ionic,jarrodkoch/ionic,jarrodkoch/ionic,cambronjay/ionic,driftyco/ionic,jhlee8804/ionic,driftyco/ionic,alan-agius4/ionic,janglednerves/ionic,dennybiasiolli/ionic,cambronjay/ionic