Upate Cargo.toml

Author: marcoroth

rust/Cargo.toml

@@ -4,8 +4,11 @@ version = "0.7.5"
 edition = "2021"
 authors = ["Marco Roth <marco.roth@intergga.ch>"]
 description = "Rust bindings for Herb"
+readme = "README.md"
 license = "MIT"
 repository = "https://github.com/marcoroth/herb"
+keywords = ["erb", "html", "html+erb", "ruby", "rails"]
+categories = ["parser-implementations", "development-tools"]
 
 [lib]
 name = "herb"