```ruby
node.default["git_pairs_authors"] = [
  {"initials" => "mk", "name" => "Matthew Kocher", "shortname" => "mkocher"},
  {"initials" => "bc", "name" => "Brian Cunnie", "shortname" => "cunnie"},
  {"initials" => "jn", "name" => "Jason Noble", "shortname" => "jnoble"},
  {"initials" => "rk", "name" => "Reed Kennedy", "shortname" => "reed"},
  {"initials" => "rh", "name" => "Rob Head", "shortname" => "rhead"},
  {"initials" => "sc", "name" => "Santa Claus"}
  ]
```

Add Jeff Dean to pairs list
user
```ruby
node.default["git_pairs_authors"] = [
  {"initials" => "mk", "name" => "Matthew Kocher", "shortname" => "mkocher"},
  {"initials" => "bc", "name" => "Brian Cunnie", "shortname" => "cunnie"},
  {"initials" => "jn", "name" => "Jason Noble", "shortname" => "jnoble"},
  {"initials" => "jd", "name" => "Jeff Dean", "shortname" => "jdean"},
  {"initials" => "rk", "name" => "Reed Kennedy", "shortname" => "reed"},
  {"initials" => "rh", "name" => "Rob Head", "shortname" => "rhead"},
  {"initials" => "sc", "name" => "Santa Claus"}
  ]
```
assistant