mention this package is deprecated

doc/extra-intersphinx.txt

 scipy
-bob.io.audio
 bob.io.image
-bob.io.video

doc/index.rst

@@ -7,7 +7,10 @@
  Bob's Core I/O Routines
 =========================
 
-This package is a part of `Bob`_.
+This package is a part of `Bob`_ and is deprecated!!!
+Please use ``h5py``, ``scipy.io.wavfile``, ``imageio``, ``imageio-ffmpeg`` instead.
+Below is the old documentation.
+
 This module contains a basic interface to read and write files of various
 types.  It provides generic functions :py:func:`bob.io.base.save` and
 :py:func:`bob.io.base.load` to write and read various types of data.  In this
@@ -15,9 +18,7 @@ interface, data is mainly written using the :py:class:`bob.io.base.HDF5File`
 interface.  To enable further types of IO, please import one of the following
 packages (the list might not be exhaustive):
 
-* :ref:`bob.io.audio` to load and save audio data of various kinds
 * :ref:`bob.io.image` to load and save images of various kinds
-* :ref:`bob.io.video` to load and save videos of various types
 
 
 Documentation