Add example for other alias file types

[tigerclaw-az]

Currently the README only shows an example of how to create an alias file for yaml, but I'd like to see an example of one using JavaScript.

[tawez]

All examples are in section Grunt tasks files aliases.(js|json|yaml|coffee) is just another task, although a bit special one.

I think that adding more examples is not necessary. All you need is already here.

My proposition is: No plan to fix

[samdbeckham]

I'm inclined to agree with @ejwaibel. It's really not clear how to add in alias files in any language other than yaml.

You say they're the same as tasks, but a bit special; what makes them special? Is it a case of writing the following, or is it something else entirely?

default:
module.exports = {
    'default' : [
        'jshint',
        'mocha',
        'notify'
    ]
};

[yfr]

:+1: For not really clear how that looks.

[tawez]

I hope #89 pull request solves the problem

[samdbeckham]

That's a lot clearer, thanks @tawez.

[tawez]

A word of comment:

What makes aliases a bit special is described in README.md:

load-grunt-config will use that to define your tasks aliases (like grunt.registerTask('default', ['jshint']);)

It means, that for each entry in aliasses file load-grunt-config will invoke grunt.registerTask().

General rules:

• aliases should be defined as arrays of strings (possibly empty)
• you have to define default even if you don't need it. If it is your case, define default as empty array.