* Run prettier over packages/**/*.js
* Run prettier over packages/**/*.ts
* Run prettier over examples
* Remove tslint
* Run prettier over examples
* Run prettier over all markdown files
* Run prettier over json files
* show warning if there is a title in _document.js Head
* dont loop through children in production
* only 1 loop through this.props.children 💪
* also raise warning in test env
* check for null childs