use spdx license expression (#209)

Author: Preocts

pyproject.toml

@@ -7,14 +7,13 @@ name = "module-name"
 requires-python = ">=3.10,<3.15"
 description = "Module Description"
 readme = "README.md"
-license = { file = "LICENSE" }
+license = "MIT"
 authors = [
     { email = "yourname@email.invalid", name = "[YOUR NAME]" },
 ]
 maintainers = []
 keywords = []
 classifiers = [
-    "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: Implementation :: CPython",