expanded who for section

Author: saturnaxis

Preamble/Figure_1.jpg

@@ -14,7 +14,18 @@
     "\n",
     "- Anyone else with some astronomy or physics background who is interested!\n",
     "\n",
-    "The code snippets in the book are all written in Python. Familiarity with the Python language and its scientific packages is useful."
+    "The code snippets in the book are all written in Python through Jupyter notebooks. Familiarity with the Python language and its scientific packages is useful, but not required.  There are introductory guides to [Python](https://saturnaxis.github.io/ModernAstro/Preamble/Python-basics.html) and [Markdown](https://saturnaxis.github.io/ModernAstro/Preamble/Markdown-basics.html) in the **Preamble**.\n",
+    "\n",
+    "This book is meant to be interactive, where you can open each chapter using [Google Colab](https://research.google.com/colaboratory/) (see below).  The runtime on Google Colab uses a version of Python that already has many useful packages (e.g., numpy, scipy, pandas, etc.) available with an import statement.  Each cell can be modified and executed for your curiosity.  Also, the text cells can be opened to reveal the source markup and formatting.\n",
+    "\n",
+    "\n",
+    "<div align=\"center\">\n",
+    "\n",
+    "<img src=\"https://github.com/saturnaxis/ModernAstro/blob/main/Preamble/Figure_1.jpg?raw=true?\" width=\"500\">\n",
+    "\n",
+    "Launch Colab button that is available at the top of the screen.\n",
+    "\n",
+    "</div>"
    ]
   }
  ],

Preamble/who-for.ipynb

@@ -315,8 +315,12 @@ <h1>Who are these notes for?<a class="headerlink" href="#who-are-these-notes-for
 <li><p>Graduate students and researchers in astrophysics</p></li>
 <li><p>Anyone else with some astronomy or physics background who is interested!</p></li>
 </ul>
-<p>The code snippets in the book are all written in Python. Familiarity with the Python language and its scientific packages is useful.</p>
-</div>
+<p>The code snippets in the book are all written in Python through Jupyter notebooks. Familiarity with the Python language and its scientific packages is useful, but not required.  There are introductory guides to <a class="reference external" href="https://saturnaxis.github.io/ModernAstro/Preamble/Python-basics.html">Python</a> and <a class="reference external" href="https://saturnaxis.github.io/ModernAstro/Preamble/Markdown-basics.html">Markdown</a> in the <strong>Preamble</strong>.</p>
+<p>This book is meant to be interactive, where you can open each chapter using <a class="reference external" href="https://research.google.com/colaboratory/">Google Colab</a> (see below).  The runtime on Google Colab uses a version of Python that already has many useful packages (e.g., numpy, scipy, pandas, etc.) available with an import statement.  Each cell can be modified and executed for your curiosity.  Also, the text cells can be opened to reveal the source markup and formatting.</p>
+<div align="center">
+<img src="https://github.com/saturnaxis/ModernAstro/blob/main/Preamble/Figure_1.jpg?raw=true?" width="500">
+<p>Launch Colab button that is available at the top of the screen.</p>
+</div></div>
 
     <script type="text/x-thebe-config">
     {

docs/Preamble/who-for.html

@@ -14,7 +14,18 @@
     "\n",
     "- Anyone else with some astronomy or physics background who is interested!\n",
     "\n",
-    "The code snippets in the book are all written in Python. Familiarity with the Python language and its scientific packages is useful."
+    "The code snippets in the book are all written in Python through Jupyter notebooks. Familiarity with the Python language and its scientific packages is useful, but not required.  There are introductory guides to [Python](https://saturnaxis.github.io/ModernAstro/Preamble/Python-basics.html) and [Markdown](https://saturnaxis.github.io/ModernAstro/Preamble/Markdown-basics.html) in the **Preamble**.\n",
+    "\n",
+    "This book is meant to be interactive, where you can open each chapter using [Google Colab](https://research.google.com/colaboratory/) (see below).  The runtime on Google Colab uses a version of Python that already has many useful packages (e.g., numpy, scipy, pandas, etc.) available with an import statement.  Each cell can be modified and executed for your curiosity.  Also, the text cells can be opened to reveal the source markup and formatting.\n",
+    "\n",
+    "\n",
+    "<div align=\"center\">\n",
+    "\n",
+    "<img src=\"https://github.com/saturnaxis/ModernAstro/blob/main/Preamble/Figure_1.jpg?raw=true?\" width=\"500\">\n",
+    "\n",
+    "Launch Colab button that is available at the top of the screen.\n",
+    "\n",
+    "</div>"
    ]
   }
  ],