How to tell eslint that you prefer single quotes around your strings

I'm new to eslint and it's spewing out a ton of errors telling me to use doublequotes:

error  Strings must use doublequote

That's not my preference. I've got an .eslintrc file set up with the basics:

{
  "env": {
    "node": 1
  }
}

I'd like to configure it for single quotes.

http://eslint.org/docs/rules/quotes.html

{
  "env": {
    "node": 1
  },
  "rules": {
    "quotes": [2, "single", "avoid-escape"]
  }
}