Make automatic prototype generation work with more interfaces.
diff --git a/runtime/doc/if_pyth.txt b/runtime/doc/if_pyth.txt
index e65b1ad..6d5266a 100644
--- a/runtime/doc/if_pyth.txt
+++ b/runtime/doc/if_pyth.txt
@@ -12,6 +12,7 @@
 4. Range objects		|python-range|
 5. Window objects		|python-window|
 6. Dynamic loading		|python-dynamic|
+7. Python 3			|python3|
 
 {Vi does not have any of these commands}
 
@@ -328,4 +329,14 @@
 sure edit "gvim.exe" and search for "python\d*.dll\c".
 
 ==============================================================================
+7. Python 3						*python3*
+
+Python 3 support can exist next to Python 2.x.
+
+*:py3* *:python3* *:py3file*
+
+TODO
+
+
+==============================================================================
  vim:tw=78:ts=8:ft=help:norl: