Add doc link

Author: AJenbo

Cargo.toml

@@ -5,6 +5,7 @@ edition = "2024"
 license = "MIT"
 description = "Fast PHP language server with deep type intelligence. Generics, Laravel, PHPStan annotations. Ready in an instant."
 repository = "https://github.com/AJenbo/phpantom_lsp"
+documentation = "https://docs.rs/phpantom_lsp/latest/phpantom_lsp/"
 readme = "README.md"
 exclude = [".gitignore", ".github/*", "target/*"]