grammar fix

samples/core/tutorials/keras/overfit_and_underfit.ipynb

@@ -267,7 +267,7 @@
         "\n",
         "To find an appropriate model size, it's best to start with relatively few layers and parameters, then begin increasing the size of the layers or adding new layers until you see diminishing returns on the validation loss. Let's try this on our movie review classification network. \n",
         "\n",
-        "We'll create a simple model using only ```Dense``` layers, then well a smaller version, and compare them."
+        "We'll create a simple model using only ```Dense``` layers as a baseline, then create smaller and larger versions, and compare them."
       ]
     },
     {