message: feat(aio): add code-of-conduct to footer
  closes
diff: "url": "https://github.com/angular/angular/issues",
  "title": "Report Issues",
  "tooltip": "Post issues and suggestions on github."
  + },
  + {
  + "url": "https://github.com/angular/code-of-conduct/blob/master/CODE_OF_CONDUCT.md",
  + "title": "Code of Conduct",
  + "tooltip": "Treating each other with respect."
  }
  ]
  },
  