A Hong Kong catering group has been donating HK$5 (64 US cents) to charity every time a customer orders selected dishes at one of their 18 outlets this December in a bid to promote the idea of sharing through food.Patrons enjoying steamed xiao long bao at Dim Sum Bar in the Nina Mall and Harbour City or sipping sangria at Pickled Pelican British pub in Stanley are among those who have helped Café Deco Group raise money for this year’s Operation Santa Claus.The annual charity initiative, jointly…