DOC: replace TODO with link to the glossary
Fixes
@@ -388,8 +388,7 @@ Checkout the official joblib documentation:
.. _warm-restarts:
-A sample algorithmic trick: warm restarts for cross validation
+A sample algorithmic trick: warm restarts
==============================================================
-TODO: demonstrate the warm restart tricks for cross validation of linear
-regression with Coordinate Descent.
+See the glossary entry for `warm_start <http://scikit-learn.org/dev/glossary.html#term-warm-start>`_
