Add not about squared=False, fixes #361

02_end_to_end_machine_learning_project.ipynb

@@ -1219,6 +1219,13 @@
     "lin_rmse"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "**Note**: since Scikit-Learn 0.22, you can get the RMSE directly by calling the `mean_squared_error()` function with `squared=False`."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 88,