message: tendermint-rpc: Update package.json author/description
diff: {
  "name": "@cosmjs/tendermint-rpc",
  "version": "0.20.0",
  - "description": "Codec to encode/decode bns transactions and state objects",
  - "author": "IOV SAS <admin@iov.one>",
  + "description": "Tendermint RPC clients",
  + "author": "Ethan Frey <ethanfrey@users.noreply.github.com>",
  "license": "Apache-2.0",
  "main": "build/index.js",
  "types": "types/index.d.ts",
  