Mark deprecated modules as such.
diff --git a/Doc/library/mimetools.rst b/Doc/library/mimetools.rst
index 603bec6..8da385e 100644
--- a/Doc/library/mimetools.rst
+++ b/Doc/library/mimetools.rst
@@ -4,6 +4,7 @@
 
 .. module:: mimetools
    :synopsis: Tools for parsing MIME-style message bodies.
+   :deprecated:
 
 
 .. deprecated:: 2.3