Doc: Fix typo. (GH-11315)
From: https://mail.python.org/pipermail/docs/2018-December/038583.html
diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index acf9b495..c5d1985 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -27,7 +27,7 @@
test fixture
A :dfn:`test fixture` represents the preparation needed to perform one or more
- tests, and any associate cleanup actions. This may involve, for example,
+ tests, and any associated cleanup actions. This may involve, for example,
creating temporary or proxy databases, directories, or starting a server
process.