Add Cargo metadata for wit-bindgen-gen-guest-c

Author: alexcrichton

crates/gen-guest-c/Cargo.toml

@@ -3,6 +3,13 @@ name = "wit-bindgen-gen-guest-c"
 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 = """
+C bindings generator for WIT and the component model, typically used through the
+`wit-bindgen-cli` crate.
+"""
 
 [lib]
 doctest = false