By Russell Myers Kensington Palace was plunged into chaos after the Princess of Wales made a public apology for editing a family photograph published around the world. Kate admitted making several changes to a picture, released to celebrate Mother’s Day, showing her embracing her three children at their Windsor home. The future queen said sorry for the “confusion” over the digitally altered image, which caused the world’s biggest photo agencies to delete it from their libraries accessed by millions. The princess was compelled to release a personal message on social media on Monday morning afte…