Update train-within-notebook.ipynb

Author: hning86

how-to-use-azureml/training/train-within-notebook/train-within-notebook.ipynb

@@ -27,7 +27,7 @@
    "metadata": {},
    "source": [
     "## Prerequisites\n",
-    "1. Make sure you go through the [00. Installation and Configuration](../../00.configuration.ipynb) Notebook first if you haven't. \n",
+    "1. Make sure you go through the [Configuration](../../../configuration.ipynb) Notebook first if you haven't. \n",
     "\n",
     "2. Install following pre-requisite libraries to your conda environment and restart notebook.\n",
     "```shell\n",