Issue 3692 - Add base ESLint configuration

eslint-config-eyeo/README.md

 # eslint-config-eyeo
 
 An [ESLint](http://eslint.org) configuration that checks for compliance with the
 [Adblock Plus coding style guide](https://adblockplus.org/coding-style#javascript)
 which is used for all eyeo projects.
 
 ## Installation
 
     npm install -g eslint eslint-config-eyeo
 
-This command requires administrator privileges so you might need to use sudo.

[Sebastian Noack, 2017/02/15 10:35:24]

Nit: While you wrapped other commands in backticks, it seems you forgot to do so
for "sudo", here.

[kzar, 2017/02/15 11:45:20]

Done.

+This command requires administrator privileges so you might need to use `sudo`.
 
 ## Usage
 
 To lint a JavaScript file using ESLint you run the `eslint` command with the
 file as an argument. For example:
 
     eslint some-file.js
 
 For advanced usage see `eslint --help`.
 
 In order to use eslint-config-eyeo your project's ESLint configuration
 should extend from it. A minimal example looks like this:
 
     {
       "extends": "eslint-config-eyeo",
       "root": true
     }
 
 For projects without an ESLint configuration you can create your own
 personal configuration in `~/.eslintrc.json`, but take care to remove
 the `"root": true` section from the above example.