PartyLayer/PartyLayer: docs/api.md

# PartyLayer API Reference **References:** - [Wallet Integration Guide](https://docs.digitalasset.com/integrate/devnet/index.html) - [Signing transactions from dApps](https://docs.digitalasset.com/integrate/devnet/signing-transactions-from-dapps/index.html) - [OpenRPC dApp API spec](https://github.c