Add Plesse image to about page.

content/about/index.md

@@ -3,12 +3,18 @@ title: "About bovender"
 toc: true
 ---
 
+{{< figure src="plesse.png" alt="Image of the Plesse castle" title="The Plesse castle (© Daniel Kraus)">}}
+
 I'm a physician-scientist from Germany.
 
 [Bovenden](https://www.bovenden.de) is the name of the village/small town
 in lovely Lower Saxony, Germany, where I grew up. Hence I'm a bovender --
 not _the_ bovender, of course, just one of many, but proud to be one :-)
 
+Not far from our village is the [Plesse
+castle](https://en.wikipedia.org/wiki/Plesse_Castle) which was built c. 1015 AD
+and which is one of my favorite places to be.
+
 Computers have been part of my life ever since I programmed my dad's
 calculator back in the 1980's.