edited about page

Figures generated using "display_content.py" from StatProofBookTools are now displayed on the About page.

Author: JoramSoch

about.md

@@ -10,4 +10,25 @@ permalink: /about/
 - "The Book of Statistical Proofs" is maintained by *Joram Soch* ([ORCID](https://orcid.org/0000-0002-8879-5666), [GitHub](https://github.com/JoramSoch), [X](https://twitter.com/JoramSoch)).
 - "StatProofBook.github.io" is generated with *GitHub* ([GitHub Pages](https://pages.github.com/), [Jekyll](https://github.com/jekyll/jekyll), [MathJax](https://www.mathjax.org/)).
 
-Unless otherwise noted, all content on this website is licensed under the ![CC-BY-SA compact icon](https://licensebuttons.net/l/by-sa/4.0/80x15.png) [Creative Commons Attribution-ShareAlike 4.0 International Public License](https://creativecommons.org/licenses/by-sa/4.0/legalcode). Read the [license summary](https://creativecommons.org/licenses/by-sa/4.0/) for more details.
+Unless otherwise noted, all content on this website is licensed under the ![CC-BY-SA compact icon](https://licensebuttons.net/l/by-sa/4.0/80x15.png) [Creative Commons Attribution-ShareAlike 4.0 International Public License](https://creativecommons.org/licenses/by-sa/4.0/legalcode). Read the [license summary](https://creativecommons.org/licenses/by-sa/4.0/) for more details.
+
+<table style="border:none">
+  <tr>
+    <td style="text-align:center">
+	  <img src="https://raw.githubusercontent.com/StatProofBook/StatProofBookTools/master/display_content/Content.png">
+	</td>
+    <td style="text-align:center">
+	  <img src="https://raw.githubusercontent.com/StatProofBook/StatProofBookTools/master/display_content/Development.png">
+	</td>
+  </tr>
+  <tr>
+    <td style="text-align:center">
+	  <img src="https://raw.githubusercontent.com/StatProofBook/StatProofBookTools/master/display_content/Topic_Definitions.png">
+	</td>
+  </tr>
+  <tr>
+    <td style="text-align:center">
+	  <img src="https://raw.githubusercontent.com/StatProofBook/StatProofBookTools/master/display_content/Topic_Proofs.png">
+	</td>
+  </tr>
+</table>