content/numpy: update word at the top

rkdarst · rkdarst · commit 35995f0d7662 · 2022-11-21T19:51:10.000+02:00
diff --git a/content/numpy.rst b/content/numpy.rst
@@ -5,7 +5,7 @@ NumPy
 
 .. questions::
 
-   - Why using NumPy instead of pure python?
+   - Why use NumPy instead of pure python?
    - How to use basic NumPy?
    - What is vectorization?
 
