[blog] fix typo in hyperlink

Author: silverweed

blog/_posts/2025-06-06-uhi-for-root.md

@@ -15,7 +15,7 @@ Fully implemented now in ROOT, UHI ensures that all ROOT histogram classes--deri
 
 ## How about a quick demo?
 
-Let me show you how you can fill your histograms with [NymPy](https://numpy.org/) arrays directly:
+Let me show you how you can fill your histograms with [NumPy](https://numpy.org/) arrays directly:
 
 ```python
 import matplotlib.pyplot as plt
@@ -55,4 +55,4 @@ plt.show()
 
 ## Ready to Level Up Your Histogram Analysis?
 With UHI, ROOT histograms now offer Python developers an intuitive, modern, and powerful API.
-Check out the [ROOT UHI documentation](https://root.cern/doc/master/group__uhi__docs.html) for more implementation details and examples!
+Check out the [ROOT UHI documentation](https://root.cern/doc/master/group__uhi__docs.html) for more implementation details and examples!