fix

paper.md

@@ -239,7 +239,7 @@ Here, we see that for homogeneous sampling to get the same error as sampling wit
 We will now introduce Adaptive's API.
 The object that can suggest points based on existing data is called a *learner*.
 The learner abstracts a loss based priority queue.
-We can either *ask* it for points or *tell* the `learner` new data point.
+We can either *ask* it for points or *tell* the *learner* new data point.
 We can define a *learner* as follows
 ```python
 from adaptive import Learner1D