couple minor readme additions

README.md

···
 | `jacquard-identity` | Identity resolution | [![Crates.io](https://img.shields.io/crates/v/jacquard-identity.svg)](https://crates.io/crates/jacquard-identity) [![Documentation](https://docs.rs/jacquard-identity/badge.svg)](https://docs.rs/jacquard-identity) |
 | `jacquard-repo` | Repository primitives (MST, commits, CAR I/O) | [![Crates.io](https://img.shields.io/crates/v/jacquard-repo.svg)](https://crates.io/crates/jacquard-repo) [![Documentation](https://docs.rs/jacquard-repo/badge.svg)](https://docs.rs/jacquard-repo) |
 | `jacquard-lexicon` | Lexicon parsing and code generation | [![Crates.io](https://img.shields.io/crates/v/jacquard-lexicon.svg)](https://crates.io/crates/jacquard-lexicon) [![Documentation](https://docs.rs/jacquard-lexicon/badge.svg)](https://docs.rs/jacquard-lexicon) |
+| `jacquard-lexgen` | Code generation binaries | [![Crates.io](https://img.shields.io/crates/v/jacquard-lexgen.svg)](https://crates.io/crates/jacquard-lexgen) [![Documentation](https://docs.rs/jacquard-lexgen/badge.svg)](https://docs.rs/jacquard-lexgen) |
 | `jacquard-derive` | Macros for lexicon types | [![Crates.io](https://img.shields.io/crates/v/jacquard-derive.svg)](https://crates.io/crates/jacquard-derive) [![Documentation](https://docs.rs/jacquard-derive/badge.svg)](https://docs.rs/jacquard-derive) |
 
 ## Development

crates/jacquard/src/lib.rs

···
 //! - [`jacquard-identity`](https://docs.rs/jacquard-identity/latest/jacquard_identity/index.html) - Identity resolution (handle → DID, DID → Doc, OAuth metadata)
 //! - [`jacquard-repo`](https://docs.rs/jacquard-repo/latest/jacquard_repo/index.html) - Repository primitives (MST, commits, CAR I/O, block storage)
 //! - [`jacquard-lexicon`](https://docs.rs/jacquard-lexicon/latest/jacquard_lexicon/index.html) - Lexicon resolution, fetching, parsing and Rust code generation from schemas
+//! - [`jacquard-lexgen`](https://docs.rs/jacquard-lexicon/latest/jacquard_lexicon/index.html) - Code generation binaries
 //! - [`jacquard-derive`](https://docs.rs/jacquard-derive/latest/jacquard_derive/index.html) - Macros (`#[lexicon]`, `#[open_union]`, `#[derive(IntoStatic)]`)
 //!
 //!