Update line breaks in gallery

Update header in tutorial four

Author: tennlee

notebooks/Gallery.ipynb

@@ -10,16 +10,16 @@
     "This gallery is organised into:\n",
     "\n",
     "- **[Quick Start (Low Hardware Requirements)](#Quick-Start-(Low-Hardware-Requirements))**.  \n",
-    "  *Good for newcomers. Includes tips and tricks, and dealing with common questions when first adopting PyEarthTools.*\n",
+    "  *Good for newcomers. Includes tips and tricks, and dealing with common questions when first adopting PyEarthTools.*  \n",
     "- **[Working with Station Data (Medium Hardware Requirements)](#Working-with-Station-Data-(Medium-Hardware-Requirements))**  \n",
-    "  *Examples of how to connect to a new data source and handle new data structures.*\n",
+    "  *Examples of how to connect to a new data source and handle new data structures.*  \n",
     "- **[Tutorials on Specific Modelling Objectives](#Tutorials-on-Specific-Modelling-Objectives)**.  \n",
     "  *Good starting points for people interested in specific modelling opportunities, or for those looking to see an end-to-end approach.*  \n",
     "- **[How-to Guides for Working with Components of PyEarthTools](#How-to-Guides-for-Components-of-PyEarthTools)**.  \n",
-    "  *Good for those wanting to understand a specific concept within PyEarthTools but don't require an end-to-end modelling demonstration.*\n",
-    "  - Introductory Guides\n",
-    "  - Deep Dive - The Data Module\n",
-    "  - Deep Dive - The Pipeline Module\n",
+    "  *Good for those wanting to understand a specific concept within PyEarthTools but don't require an end-to-end modelling demonstration.*  \n",
+    "  - Introductory Guides  \n",
+    "  - Deep Dive - The Data Module  \n",
+    "  - Deep Dive - The Pipeline Module  \n",
     "\n",
     "Each tutorial is marked with its last-tested date. \n",
     "\n",

notebooks/scorecard/HadISD-Four-MakeLargeGroupings.ipynb

@@ -5,7 +5,7 @@
    "id": "34516ecf-500b-4a2b-a7a3-edf5d667c942",
    "metadata": {},
    "source": [
-    "\n",
+    "# HadISD Tutorial Four - Make Large Groupings\n",
     "\n",
     "> **NOTE**\n",
     "> Before beginning this tutorial, you should first read [HadISD Tutorial One - Introduction to Station Data](./HadISD-One-Introduction.ipynb) and ensure you complete the tutorials in order"