Fix link with missing anchor tag

This page has changed significantly, linking to the entire page probably makes more sense instead now.

Author: di

source/guides/installing-scientific-packages.rst

@@ -89,7 +89,7 @@ SciPy distributions
 -------------------
 
 The SciPy site lists `several distributions
-<https://scipy.org/install/#distributions>`_
+<https://scipy.org/install/>`_
 that provide the full SciPy stack to
 end users in an easy to use and update format.