Update crate metadata

Author: phil-opp

Cargo.toml

@@ -4,7 +4,7 @@ version = "0.4.6"
 authors = ["Philipp Oppermann <[email protected]>"]
 license = "MIT OR Apache-2.0"
 keywords = ["volatile"]
-description = "A simple volatile wrapper type"
+description = "Volatile wrapper types for raw pointers"
 documentation = "https://docs.rs/volatile"
 repository = "https://github.com/rust-osdev/volatile"
 edition = "2021"