diff --git a/skimage/rank/README.rst b/skimage/rank/README.rst
index b15001e6..ef56f997 100644
--- a/skimage/rank/README.rst
+++ b/skimage/rank/README.rst
@@ -1,5 +1,13 @@
 To use this to build your Cython file use the commandline options:
 
+**To do**
+
+* add simple examples
+
+* add doc
+
+
+
 .. sourcecode:: text
 
     $ python setup.py build_ext --inplace
\ No newline at end of file