update

README.md

@@ -22,7 +22,7 @@
   * reward information for each trial, i.e. *rewards*, 0 - no reward, 1 - reward
   * width of the *feedback range* in each trial
   * running *distance covered* during the session. Note that the position of the animal
-  was only tracked during the reproduction phase. In the other trial phases
+  was only tracked during the reproduction phase. In the other trial phases, the animal's
   position was not tracked but may have been reset, leading to jump-like artifacts in the 
   covered distance, which should be ignored during analysis. These jumps are not due to 
   the behavior of the animals. See also Figure 1–Figure supplement 1.