Add Comment to explain why we use git-diff again

entrypoint.sh

@@ -25,6 +25,10 @@ _main() {
 
         _add_files
 
+        # Check dirty state of repo again using git-diff.
+        # (git-diff detects beter if CRLF of files changes and does NOT
+        # proceed, if only CRLF changes are detected. See #241 and #265
+        # for more details.)
         if [ -n "$(git diff --staged)" ] || "$INPUT_SKIP_DIRTY_CHECK"; then
             _local_commit