Add headers to a couple notebooks

Author: dopplershift

notebooks/convective/MUCAPE.ipynb

@@ -1,5 +1,17 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "cell_marker": "\"\"\"",
+    "lines_to_next_cell": 0
+   },
+   "source": [
+    "Most-Unstable Convective Available Potential Energy (MUCAPE)\n",
+    "======================\n",
+    "Calculate MUCAPE on a grid of netCDF data using MetPy."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 10,

notebooks/convective/TCPW.ipynb

@@ -1,5 +1,17 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "cell_marker": "\"\"\"",
+    "lines_to_next_cell": 0
+   },
+   "source": [
+    "Total Column Precipitable Water (TCPW)",
+    "======================\n",
+    "Calculate TCPW on a grid of netCDF data using MetPy."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 10,