minor changes

img file

added description in onboarding screen

created a cart screen

first commit 🚀: created a checkout card

created a model for products added to cart

created a card to show info. of items in cart

ListView.builder() to display items in cart

created appbar for the 'cart' screen

added whitespace

appended route name for 'cart' screen

updated onTap

updated onPress - user is redirected to 'cart' screen

updated Navigator.pushNamed()

Updated documentation: added a demo video