Specify Windows support in classifiers

Author: adamtheturtle

pyproject.toml

@@ -25,6 +25,7 @@ classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Environment :: Web Environment",
     "License :: OSI Approved :: MIT License",
+    "Operating System :: Microsoft :: Windows",
     "Operating System :: POSIX",
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: 3.12",