At the start of their new, much-anticipated Netflix docuseries “Harry & Meghan,” the Duchess of Sussex — the woman formerly known as Meghan Markle — is asked what her motivations are for creating the documentary. “When you feel like people haven’t gotten any sense of who you are for so long, it’s really nice to just be able to have the opportunity to let people have a bit more of a glimpse into what’s happened and who you are,” she responds. The couple may be polarizing, but they are incredibly prolific narrators of their own past. That may be her...