clarify that the overview also covers non-Python packaging options (pypa#542)

Author: mahmoud

source/index.rst

@@ -42,8 +42,8 @@ development ecosystem are covered in our :doc:`tutorials/index` section:
   :doc:`tutorial on managing application dependencies <tutorials/managing-dependencies>`.
 * to learn how to package and distribute your projects, see the
   :doc:`tutorial on packaging and distributing <tutorials/packaging-projects>`
-* to get an overview of Python's packaging options, see the
-  :doc:`Overview of Python Packaging <overview>`.
+* to get an overview of packaging options for Python libraries and
+  applications, see the :doc:`Overview of Python Packaging <overview>`.
 
 
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