message: Add badges [skip ci]
diff: <h1><p align="center"><img alt="CosmJS" src="docs/logo-vertical-light.png" width="180" /></p></h1>
  +<div align="center">
  + <a href="https://lgtm.com/projects/g/cosmos/cosmjs/context:javascript"><img alt="Language grade: JavaScript" src="https://img.shields.io/lgtm/grade/javascript/g/cosmos/cosmjs.svg?logo=lgtm&logoWidth=18"/></a>
  + <a href="https://github.com/cosmos/cosmjs/blob/main/LICENSE">
  + <img alt="License: Apache-2.0" src="https://img.shields.io/github/license/cosmos/cosmjs.svg" />
  + </a>
  +</div>
  +
  CosmJS is the Swiss Army knife to power JavaScript based client solutions
  ranging from Web apps/explorers over browser extensions to server-side clients
  like faucets/scrapers in the Cosmos ecosystem.
  