message: docs(alumn): add Jay Phelps as core team alumn
diff: "website": "http://staltz.com",
  "group": "Alumn"
  },
  + "jay": {
  + "name": "Jay Phelps",
  + "role": "Developer",
  + "github": "https://github.com/jayphelps",
  + "picture": "https://avatars0.githubusercontent.com/u/762949",
  + "twitter": "https://twitter.com/_jayphelps",
  + "website": "http://jayphelps.com",
  + "group": "Alumn"
  + },
  "nat": {
  "name": "Natalie Smith",
  "role": "Developer",
  