Presenter and author Carol Vorderman shared her immense pride in her daughter Katie on Wednesday as she celebrated an amazing milestone.The 30-year-old has just submitted the thesis for her PhD at the University of Cambridge and she posted a series of photographs to mark the occasion.READ: Carol Vorderman makes deeply personal confession about son's severe learning disabilitiesTaking to her Instagram Stories, Carol proudly shared a couple of snapshots.The first showed Katie, who looks so much