Add missing ``` to prevent location from always being New York.

dummy_agent_library.ipynb

@@ -361,6 +361,7 @@
       "  \"action\": \"get_weather\",\n",
       "  \"action_input\": {\"location\": \"New York\"}\n",
       "}}\n",
+      "```\n",
       "\n",
       "ALWAYS use the following format:\n",
       "\n",