Update README.md

[esplinr]

Corrections, clarifications, and an additional deprecation.

[esplinr]

Is anything inaccurate?

Are there any other deprecations we should include?

[olegnn]

I’m not sure why arkworks is listed separately, as it’s not a direct dependency of the SDK. Instead, it’s a dependency of the Dock crypto library, which is itself a dependency of the Dock WASM crypto library. This, in turn, is a dependency of the Dock TS crypto wrapper library, which ultimately becomes a dependency of the SDK.
Also, the SDK includes full anoncreds support using Pointcheval-Sanders and BBS+ schemes.