add documentation

Closes #91 (closed).

adaptive/learner/balancing_learner.py

@@ -21,7 +21,7 @@ class BalancingLearner(BaseLearner):
 
     Parameters
     ----------
-    learners : sequence of BaseLearner
+    learners : sequence of `BaseLearner`
         The learners from which to choose. These must all have the same type.
     cdims : sequence of dicts, or (keys, iterable of values), optional
         Constant dimensions; the parameters that label the learners. Used