code: function HTML(strings, ...values) {
    var dummy = document.createElement('div');
    var fragment = document.createDocumentFragment();
    dummy.innerHTML = compose(strings, ...values);
    forEach.call(dummy.childNodes, appendChild, fragment);
    return fragment;
  }
docs: Template helper which handles HTML; return a document fragment. Example: ``` document.body.appendChild(HTML`<span>${foo}</span><span>${bar}</span>`); ``` /* NEEDS WORK