Amazon’s streaming platform Prime is set to stream an “intimate” documentary about the life of Canadian musician Celine Dion and her struggle with a rare neurological disease. The 55-year-old singer announced on her website on Tuesday that Prime would stream “I Am: Celine Dion” by director Irene Taylor. No release date for the documentary was given. “This last couple of years has been such a challenge for me, the journey from discovering my condition to learning how to live with and manage it, but not to let it define me,” Dion said. “As the road to resuming my performing career continues, I h…