Update Cargo.toml metadata

Author: thejpster

Cargo.toml

@@ -5,6 +5,9 @@ authors = ["Jonathan 'theJPster' Pallant <[email protected]>"]
 edition = "2018"
 description = "Common BIOS code and API for all Neotron systems."
 license = "GPL-3.0-or-later"
+respository = "https://github.com/neotron-compute/neotron-common-bios.git"
+homepage = "https://github.com/neotron-compute/neotron-common-bios"
+readme = "README.md"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html