Update min_element_index.md

snippets/min_element_index.md

@@ -8,8 +8,8 @@ Returns the index of the element with the minimum value in a list.
 - Use `min()` and `list.index()` to obtain the minimum value in the list and then return its index.
 
 ```py
-def min_element_index(array):
+def min_element_index(arr):
-  return array.index(min(array))
+  return arr.index(min(arr))
 ```
 
 ```py