Update ch05.ipynb (#297)

typo

ch05/01_main-chapter-code/ch05.ipynb

@@ -2406,7 +2406,7 @@
    "id": "6d079f98-a7c4-462e-8416-5a64f670861c",
    "metadata": {},
    "source": [
-    "- We know that we loaded the model weights correctly because the model can generate coherent text; if we made even a small mistake, the mode would not be able to do that"
+    "- We know that we loaded the model weights correctly because the model can generate coherent text; if we made even a small mistake, the model would not be able to do that"
    ]
   },
   {