Add table of contents to Tidal learning notebook

notebooks/learning/gwf_advtidal.ipynb

@@ -1,5 +1,36 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Contents\n",
+    "\n",
+    "- 1. Load and explore example\n",
+    "- 2. Check and run simulation\n",
+    "- 3. Plot results\n",
+    "- 4. Breakdown simulation level packages\n",
+    "\t- 4(a). Temporal Discretization (TDIS) Package\n",
+    "\t- 4(b). Iterative Model Solution (IMS)\n",
+    "- 5. Breakdown model level packages\n",
+    "\t- 5(a). Structured Discretization (DIS)\n",
+    "\t- 5(b). Node Property Flow (NPF) Package\n",
+    "\t- 5(c). Initial Conditions (IC) Package\n",
+    "\t- 5(d). Storage (STO) Package\n",
+    "\t- 5(e). General-Head Boundary (GHB) Package\n",
+    "\t\t- 5(e)(i). Time Series Package\n",
+    "\t\t- 5(e)(ii). Observation Package\n",
+    "\t- 5(f). Well (WEL) Package\n",
+    "\t- 5(g). River (RIV) Package\n",
+    "\t- 5(h). Recharge (RCH) Package\n",
+    "\t\t- 5(h)(i). Zone 1\n",
+    "\t\t- 5(h)(ii). Zone 2\n",
+    "\t\t- 5(h)(iii). Zone 3\n",
+    "\t- 5(i). Evapotranspiration (EVT) Package\n",
+    "\t- 5(j). Output Control (OC)\n",
+    "\t- 5(k). Observation (OBS)"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,