update table of contents markdown so doesn't render in preview

Author: jyaistMap

samples/04_gis_analysts_data_scientists/model_explainability_using_shap_for_tabular_data.ipynb

@@ -11,7 +11,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Table of contents\n",
+    "## Table of Contents\n",
     "* [Introduction](#Introduction)\n",
     "* [What is SHAP](#SHAP)\n",
     "* [Prepare Data](#prepare)\n",

samples/04_gis_analysts_data_scientists/tabular_data_supervised_learning_using_automl.ipynb

@@ -11,7 +11,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Table of contents\n",
+    "## Table of Contents\n",
     "* [Introduction](#Introduction)\n",
     "* [Prepare tabular data](#prepare)\n",
     "* [Train model using AutoML](#AutoML)\n",