Fix spelling mistakes

8-Reinforcement/1-QLearning/solution/notebook.ipynb

@@ -58,7 +58,7 @@
     "For simplicity, let's consider Peter's world to be a square board of size `width` x `height`. Each cell in this board can either be:\n",
     "* **ground**, on which Peter and other creatures can walk\n",
     "* **water**, on which you obviously cannot walk\n",
-    "* **a tree** or **grass** - a place where you cat take some rest\n",
+    "* **a tree** or **grass** - a place where you can take some rest\n",
     "* **an apple**, which represents something Peter would be glad to find in order to feed himself\n",
     "* **a wolf**, which is dangerous and should be avoided\n",
     "\n",
@@ -566,4 +566,4 @@
    "metadata": {}
   }
  ]
-}
+}