readme files untouched since 2022

[dynst]

https://github.com/cosmos/cosmjs/blob/67234a84d92bda47709784661f69a3a527311289/packages/stargate/README.md#L7-L11

This is what shows up on the NPM website and in the official documentation when a release is tagged and published, and it's fairly useless - it implies CosmJS still lacks support for Cosmos SDK 0.47.

https://www.npmjs.com/package/@cosmjs/stargate https://cosmos.github.io/cosmjs/latest/stargate/index.html

The 15 different packages' readmes need less outdated info, and maybe more package-specific badges like the ones displayed for these packages: https://www.npmjs.com/package/rollup https://www.npmjs.com/package/nuxt

https://deno.bundlejs.com/badge?q=@cosmjs/stargate

https://github.com/styfle/packagephobia