docs(demos): add barkpark as an installed app
docs(demos): add barkpark as an installed app

references #5311

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