docs: add comments to classifiers stuff

Author: psychedelicious

scripts/build_wheel.sh

@@ -38,6 +38,8 @@ echo -e "${BGREEN}HEAD${RESET}:"
 git_show HEAD
 echo
 
+# If the classifiers are invalid, publishing to PyPI will fail but the build will succeed.
+# It's a fast check, do it early.
 echo "Checking pyproject classifiers..."
 python3 ./check_classifiers.py ../pyproject.toml
 echo

scripts/check_classifiers.py

@@ -3,6 +3,9 @@
 import urllib.request
 from pathlib import Path
 
+# This script checks the classifiers in a pyproject.toml file against the official Trove classifier list.
+# If the classifiers are invalid, PyPI will reject the package upload.
+
 # Step 1: Get pyproject.toml path from args
 if len(sys.argv) != 2:
     print(f"Usage: {sys.argv[0]} path/to/pyproject.toml", file=sys.stderr)