Fix note markup (#16805).
Patch by Tshepang Lekhonkhobe, reviewed by Georg Brandl.
diff --git a/Doc/library/getopt.rst b/Doc/library/getopt.rst
index b6ab3df..f9a1e53 100644
--- a/Doc/library/getopt.rst
+++ b/Doc/library/getopt.rst
@@ -10,6 +10,7 @@
--------------
.. note::
+
The :mod:`getopt` module is a parser for command line options whose API is
designed to be familiar to users of the C :c:func:`getopt` function. Users who
are unfamiliar with the C :c:func:`getopt` function or who would like to write