Add labels to download badges for clarity

Author: hidai25

README.md

@@ -14,8 +14,8 @@
 [![Checked with mypy](https://www.mypy-lang.org/static/mypy_badge.svg)](https://mypy-lang.org/)
 
 [![PyPI version](https://img.shields.io/pypi/v/evalview.svg)](https://pypi.org/project/evalview/)
-[![PyPI downloads](https://img.shields.io/pypi/dm/evalview.svg)](https://pypi.org/project/evalview/)
-[![npm downloads](https://img.shields.io/npm/dm/@evalview/node.svg)](https://www.npmjs.com/package/@evalview/node)
+[![Python downloads](https://img.shields.io/pypi/dm/evalview.svg?label=python%20downloads)](https://pypi.org/project/evalview/)
+[![Node.js downloads](https://img.shields.io/npm/dm/@evalview/node.svg?label=node.js%20downloads)](https://www.npmjs.com/package/@evalview/node)
 [![GitHub Action](https://img.shields.io/badge/GitHub%20Action-Marketplace-blue?logo=github)](https://github.com/marketplace/actions/evalview-ai-agent-testing)
 
 <p align="center">