Gigi Hadid has apologised for hinting that Rihanna is expecting twins. The 26-year-old model had initially commented on an Instagram made by the pregnant popstar and had mentioned “three angels” in her congratulatory message, which caused a “commotion” on social media, but was referring to Rihanna’s partner A$AP Rocky rather than a second baby. Taking to Instagram to explain, she wrote: “I just caught word of this commotion. I meant rih / rocky / baby lol.” It comes just days after ‘Umbrella’ hitmaker Rihanna, 33, announced that she and her boyfriend Rocky – who she has been dating via a photo…