Break up the 'someos' docs classification based on a more user-focused scheme, including creation of a separate 'Concurrent Execution' section
diff --git a/Doc/library/ipc.rst b/Doc/library/ipc.rst
index c873065..91ec693 100644
--- a/Doc/library/ipc.rst
+++ b/Doc/library/ipc.rst
@@ -8,7 +8,7 @@
to communicate.
Some modules only work for two processes that are on the same machine, e.g.
-:mod:`signal` and :mod:`subprocess`. Other modules support networking protocols
+:mod:`signal` and :mod:`mmap`. Other modules support networking protocols
that two or more processes can used to communicate across machines.
The list of modules described in this chapter is:
@@ -16,9 +16,9 @@
.. toctree::
- subprocess.rst
socket.rst
ssl.rst
- signal.rst
asyncore.rst
asynchat.rst
+ signal.rst
+ mmap.rst