Fix YAML metadata: remove invalid 'computer-vision' task category

- Keep only valid task categories: image-classification and object-detection
- Resolves Hugging Face metadata validation warning

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

Co-Authored-By: Claude <[email protected]>

README.md

@@ -3,7 +3,6 @@ license: cc0-1.0
 task_categories:
 - image-classification
 - object-detection
-- computer-vision
 language:
 - en
 tags: