Fix typo in library/ipc.rst
diff --git a/Doc/library/ipc.rst b/Doc/library/ipc.rst
index 2440bd4..6b17563 100644
--- a/Doc/library/ipc.rst
+++ b/Doc/library/ipc.rst
@@ -9,7 +9,7 @@
Some modules only work for two processes that are on the same machine, e.g.
:mod:`signal` and :mod:`mmap`. Other modules support networking protocols
-that two or more processes can used to communicate across machines.
+that two or more processes can use to communicate across machines.
The list of modules described in this chapter is: