Invalid example in README

[herkyl]

In this example:

import {render,app} from 'deku'

// Define our custom element. The render method should
// return a new virtual element.
var App = {
  render: function ({ props, state }) {
    return {
      type: 'p',
      attributes: { color: props.color }
    }
  }
}

// Then create a virtual element with our custom type
var app = tree({
  type: App, // <- custom type instead of a string
  attributes: { color: 'red' } // <- these become 'props'
})

// And render it to the DOM
render(app, document.body)

The import line should be:

import {render, tree} from 'deku'

[anthonyshort]

Feel free to open a PR with that change :)