[doc] Add a missing apostrophe in a code example in venv.rst (GH-28391) (GH-28425)

(cherry picked from commit d22a700091af35ce52db0b1fbb02115bb6efbb1f)

Co-authored-by: Arkaprabha Chakraborty <chakrabortyarkaprabha998@gmail.com>
diff --git a/Doc/library/venv.rst b/Doc/library/venv.rst
index 2a4eede..127a871 100644
--- a/Doc/library/venv.rst
+++ b/Doc/library/venv.rst
@@ -425,7 +425,7 @@
                                                          'more target '
                                                          'directories.')
             parser.add_argument('dirs', metavar='ENV_DIR', nargs='+',
-                                help='A directory in which to create the
+                                help='A directory in which to create the '
                                      'virtual environment.')
             parser.add_argument('--no-setuptools', default=False,
                                 action='store_true', dest='nodist',