chore(readme) updates badges

Author: goldcaddy77

README.md

@@ -1,9 +1,8 @@
 # serverless-elasticsearch-client
 
-[![serverless](http://public.serverless.com/badges/v3.svg)](http://www.serverless.com)
-[<img title="Version" src="https://img.shields.io/npm/v/serverless-elasticsearch-client.svg?style=flat-square" />](https://www.npmjs.org/package/serverless-elasticsearch-client)
-[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](#contributing)
-[![license](https://img.shields.io/npm/l/serverless.svg)](https://www.npmjs.com/package/serverless)
+[![serverless](https://img.shields.io/badge/serverless-1.0-dda415.svg)](http://www.serverless.com)
+[![npm version](https://img.shields.io/npm/v/serverless-elasticsearch-client.svg)](https://www.npmjs.org/package/serverless-elasticsearch-client)
+[![Standard - JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-dbb30b.svg)](https://standardjs.com)
 
 ## AWS Elasticsearch Client