chore(docs): remove TODO prefixes from example documentation

The weekly maintenance workflow flagged TODOs in documentation-patterns.md
as action items, but they were actually part of an example command
specification template. Removed the "TODO:" prefixes while preserving
the FUTURE IMPROVEMENTS section content to prevent false positives.

Fixes #51

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: sjnims

plugins/plugin-dev/skills/command-development/references/documentation-patterns.md

@@ -587,9 +587,9 @@ TESTING:
   - Manual test checklist: tests/manual-checklist.md
 
 FUTURE IMPROVEMENTS:
-  - TODO: Add support for TOML format
-  - TODO: Implement parallel processing
-  - TODO: Add progress bar for large files
+  - Add support for TOML format
+  - Implement parallel processing
+  - Add progress bar for large files
 
 RELATED FILES:
   - lib/parser.sh: Shared parsing logic