Document the (very small) public API for importlib. As time goes on and some
key refactorings occur more of the API will be exposed and documented.
diff --git a/Doc/library/modules.rst b/Doc/library/modules.rst
index 2590a3a..24307d5 100644
--- a/Doc/library/modules.rst
+++ b/Doc/library/modules.rst
@@ -18,3 +18,4 @@
    pkgutil.rst
    modulefinder.rst
    runpy.rst
+   importlib.rst