build(cargo): add crates.io readme configuration

Author: francescobianco

Cargo.toml

@@ -3,6 +3,8 @@ name = "openapi-cli"
 version = "0.1.0"
 edition = "2024"
 description = "CLI client for Openapi.com APIs"
+readme = "docs/crates-io.md"
+repository = "https://github.com/openapi/openapi-cli"
 
 [dependencies]
 clap = { version = "4", features = ["derive", "env"] }