chore: Update package metadata

Author: Stranger6667

Cargo.toml

@@ -3,6 +3,13 @@ name = "css-inline"
 version = "0.1.0"
 authors = ["Dmitry Dygalo <[email protected]>"]
 edition = "2018"
+license = "MIT"
+readme = "README.md"
+description = "A crate for inlining CSS into HTML documents"
+repository = "https://github.com/Stranger6667/css-inline"
+keywords = ["html", "css"]
+exclude = [".github", ".pre-commit-config.yaml", ".yamllint", ".gitignore"]
+categories = ["web-programming"]
 
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