Fix lots of broken links in the docs, found by Sphinx' external link checker.
diff --git a/Doc/distutils/apiref.rst b/Doc/distutils/apiref.rst
index e334881..f5b49b8 100644
--- a/Doc/distutils/apiref.rst
+++ b/Doc/distutils/apiref.rst
@@ -73,7 +73,7 @@
+--------------------+--------------------------------+-------------------------------------------------------------+
| *classifiers* | A list of categories for the | The list of available |
| | package | categorizations is at |
- | | | http://cheeseshop.python.org/pypi?:action=list_classifiers. |
+ | | | http://pypi.python.org/pypi?:action=list_classifiers. |
+--------------------+--------------------------------+-------------------------------------------------------------+
| *distclass* | the :class:`Distribution` | A subclass of |
| | class to use | :class:`distutils.core.Distribution` |