pyproject: fill in more metadata

Author: woodruffw

pyproject.toml

@@ -16,16 +16,21 @@ readme = "README.md"
 license = { file = "LICENSE" }
 authors = [{ name = "Jack Maney", email = "[email protected]" }]
 maintainers = [{ name = "William Woodruff", email = "[email protected]" }]
-# TODO: Classifiers.
+classifiers = [
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3",
+    "Intended Audience :: Developers",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+]
 dependencies = []
 requires-python = ">=3.7"
 
 [project.urls]
 Homepage = "https://pypi.org/project/stdlib-list/"
 Issues = "https://github.com/pypi/stdlib-list/issues"
 Source = "https://github.com/pypi/stdlib-list"
-# TODO: Documentation.
-# Documentation = ""
+Documentation = "https://pypi.github.io/stdlib-list/"
 
 [project.optional-dependencies]
 test = ["pytest", "pytest-cov", "coverage[toml]"]