build: add more metadata to Cargo.toml for publishing the crate

Author: alehander92

Cargo.toml

@@ -2,6 +2,12 @@
 name = "runtime_tracing"
 version = "0.7.0"
 edition = "2021"
+authors = ["Metacraft Labs Ltd"]
+description = "A library for the schema and tracing helpers for the CodeTracer db trace format"
+readme = "README.md"
+repository = "https://github.com/metacraft-labs/runtime_tracing"
+license = "MIT"
+keywords = ["development-tools::debugging", "development-tools"]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html