Update Cargo metadata.

Cargo.toml

@@ -2,8 +2,13 @@
 name = "smoltcp"
 version = "0.1.0"
 authors = ["whitequark <whitequark@whitequark.org>"]
+description = "A TCP/IP stack designed for bare-metal, real-time systems without a heap."
+documentation = "https://docs.rs/smoltcp/"
+homepage = "https://github.com/m-labs/smoltcp"
+repository = "https://github.com/m-labs/smoltcp.git"
+readme = "README.md"
+keywords = ["ip", "tcp", "udp", "ethernet", "network"]
 license = "0BSD"
-readme-file = "README.md"
 
 [dependencies]
 byteorder = { version = "0.5", default-features = false }

README.md

@@ -9,7 +9,7 @@ at cost of performance degradation.
 _smoltcp_ does not need heap allocation *at all*, is [extensively documented][docs],
 and compiles on stable Rust.
 
-[docs]: https://m-labs.github.io/smoltcp/smoltcp/index.html
+[docs]: https://docs.rs/smoltcp/
 
 Features
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