Update docs

examples/scoring_and_roc_generation/README.rst

@@ -19,9 +19,12 @@ created.
 An example of running scoring tools can be found `here`_.
 The scoring tool takes two files: the actual detections in the truth
 file and the computed detections. The computed detections are scored
-against the truth file to give a set of statistics as shown below:
+against the truth file to give a set of statistics as shown below. Additional
+parameters that can be passed to the tool and other options can be found in
+the `KWANT documentation`.
 
 .. _here: https://github.com/Kitware/VIAME/blob/master/examples/scoring_and_roc_generation/
+.. _KWANT documentation: https://github.com/Kitware/kwant/blob/master/doc/manuals/introduction.rst
 
 ::