message: Add jsDelivr hits badge
diff: ## What is Searchkit?
  [<img src="https://circleci.com/gh/searchkit/searchkit.png?style=shield"/>](https://circleci.com/gh/searchkit/searchkit)
  [![npm version](https://badge.fury.io/js/searchkit.svg)](https://badge.fury.io/js/searchkit)
  +[![jsDelivr Hits](https://data.jsdelivr.com/v1/package/npm/searchkit/badge?style=rounded)](https://www.jsdelivr.com/package/npm/searchkit)
  [![Join the chat at https://gitter.im/searchkit/searchkit](https://badges.gitter.im/searchkit/searchkit.svg)](https://gitter.im/searchkit/searchkit?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
  [![Coverage Status](https://coveralls.io/repos/searchkit/searchkit/badge.svg?branch=develop&service=github)](https://coveralls.io/github/searchkit/searchkit?branch=develop)
  