Soft drink giant is launching Cocoa Cola
                                
                                
                                    (Newser) -
                                    On Thursday, the Pepsi  Twitter feed  put up a rather intriguing call to action. In honor of bidding adieu to the "worst year ever" and welcoming 2021, the soft drink giant asked for 2,021 retweets of a picture of its latest potential offering: Cocoa Cola, a soda described...