Update README.md

Author: okhat

README.md

@@ -8,7 +8,7 @@
 
 **Documentation:** [DSPy Docs](https://dspy.ai/)
 
-[![PyPI Downloads](https://static.pepy.tech/badge/dspy/month)](https://pepy.tech/projects/dspy)
+![PyPI Downloads](https://img.shields.io/pypi/dm/dspy)
 
 
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