This week tech companies worked their angles for the Rio Olympics, Uber China gave into Didi Chuxing and Instagram cloned Snapchat with an ephemeral new feature. Here are this week’s top stories in tech. You can receive the Weekly Roundup in your inbox every Saturday, if that’s your kinda thing. 1. Didi Chuxing will buy Uber China,…

via Weekly Roundup: Didi buys Uber China, Instagram’s Snapchatty ‘Stories’ and new emoji — TechCrunch