chore: add missing Cargo.toml metadata

whoops.

Author: Joonas Koivunen

bitswap/Cargo.toml

@@ -1,8 +1,11 @@
 [package]
 authors = ["Rust-IPFS contributors"]
+description = "Bitswap protocol implementation used in ipfs"
 edition = "2018"
 name = "ipfs-bitswap"
 version = "0.1.0"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/rs-ipfs/rust-ipfs"
 
 [build-dependencies]
 prost-build = { default-features = false, version = "0.6" }