[3.12] gh-110534 fix a URL redirect to wikipedia article on Fibonacci numbers (GH-110535) (#110536)

gh-110534 fix a URL redirect to wikipedia article on Fibonacci numbers (GH-110535)
(cherry picked from commit 892ee72)

Co-authored-by: partev <petrosyan@gmail.com>

Author: miss-islington

Doc/tutorial/introduction.rst

@@ -480,7 +480,7 @@ First Steps Towards Programming
 
 Of course, we can use Python for more complicated tasks than adding two and two
 together.  For instance, we can write an initial sub-sequence of the
-`Fibonacci series <https://en.wikipedia.org/wiki/Fibonacci_number>`_
+`Fibonacci series <https://en.wikipedia.org/wiki/Fibonacci_sequence>`_
 as follows::
 
    >>> # Fibonacci series: