Update 'Figure 3/README.md'

Figure 3/README.md

@@ -28,6 +28,7 @@ Normalized by responses during pre-stimulus period [-1 0] s.
 ## Fig. 3C.mat
 
 PSTHs of three distinctive subpopulations of L5 pyramidal neurons in expert rats.
+[cellNum x binNum]
 
 
 ### Conditions