Add Cargo metadata for remaining crates

Author: alexcrichton

Cargo.toml

@@ -3,6 +3,12 @@ name = "wit-bindgen-cli"
 authors = ["Alex Crichton <[email protected]>"]
 version = "0.3.0"
 edition.workspace = true
+repository = 'https://github.com/bytecodealliance/wit-bindgen'
+license = "Apache-2.0 WITH LLVM-exception"
+homepage = 'https://github.com/bytecodealliance/wit-bindgen'
+description = """
+CLI tool to generate bindings for WIT documents and the component model.
+"""
 
 [workspace]
 members = [

crates/gen-markdown/Cargo.toml

@@ -2,6 +2,13 @@
 name = "wit-bindgen-gen-markdown"
 version = "0.3.0"
 edition.workspace = true
+repository = 'https://github.com/bytecodealliance/wit-bindgen'
+license = "Apache-2.0 WITH LLVM-exception"
+homepage = 'https://github.com/bytecodealliance/wit-bindgen'
+description = """
+Markdown generator for WIT and the component model, typically used
+through the `wit-bindgen-cli` crate.
+"""
 
 [lib]
 doctest = false

crates/guest-rust-macro/Cargo.toml

@@ -3,6 +3,12 @@ name = "wit-bindgen-guest-rust-macro"
 authors = ["Alex Crichton <[email protected]>"]
 version = "0.3.0"
 edition.workspace = true
+repository = 'https://github.com/bytecodealliance/wit-bindgen'
+license = "Apache-2.0 WITH LLVM-exception"
+homepage = 'https://github.com/bytecodealliance/wit-bindgen'
+description = """
+Procedural macro paired with the `wit-bindgen` crate.
+"""
 
 [lib]
 proc-macro = true

crates/guest-rust/Cargo.toml

@@ -3,6 +3,13 @@ name = "wit-bindgen"
 authors = ["Alex Crichton <[email protected]>"]
 version = "0.3.0"
 edition.workspace = true
+repository = 'https://github.com/bytecodealliance/wit-bindgen'
+license = "Apache-2.0 WITH LLVM-exception"
+homepage = 'https://github.com/bytecodealliance/wit-bindgen'
+description = """
+Rust bindings generator and runtime support for WIT and the component model.
+Used when compiling Rust programs to the component model.
+"""
 
 [dependencies]
 wit-bindgen-guest-rust-macro = { path = "../guest-rust-macro", optional = true }