[eslint config] add rule link and defaults to jsx-quotes rule

packages/eslint-config-airbnb/rules/style.js

@@ -26,7 +26,8 @@ module.exports = {
     // https://github.com/eslint/eslint/blob/master/docs/rules/indent.md
     'indent': [2, 2, { "SwitchCase": 1, "VariableDeclarator": 1 }],
     // specify whether double or single quotes should be used in JSX attributes
-    'jsx-quotes': 2,
+    // http://eslint.org/docs/rules/jsx-quotes
+    'jsx-quotes': [2, 'prefer-double'],
     // enforces spacing between keys and values in object literal properties
     'key-spacing': [2, {'beforeColon': false, 'afterColon': true}],
     // enforces empty lines around comments