Meghan Markle and Prince Harry contacted William and Kate privately in a ‘significant’ move towards thawing tensions, according to a royal commentator. The Princess of Wales yesterday left the world reeling by announcing her cancer diagnosis in a video message. According to former BBC royal correspondent Michael Cole, the move has prompted contact from the Sussexes amid rife tensions between the two couples. “It has been reported from California that the Sussexes have reached out privately to Kate and William”, he said. “We don’t know who spoke to who or what was said but if that did happen, i…