Update about page.

content/about/index.md

@@ -22,16 +22,25 @@ calculator back in the 1980's.
 
 ### [ggap-ev.org](https://ggap-ev.org)
 
+GGAP is a registered charity in Germany. This NGO uses donated money to fund the
+vocational training of young adults on the Philippines who would otherwise have
+to "earn" their living in an unlawful way.
+
 {{< figure src="ggap-ev.png">}}
 
 ### [nephrowiki.de](https://nephrowiki.de)
 
+NephroWiki is a closed wiki system that has been up and running since 2011.
+
 {{< figure src="nephrowiki.png">}}
 
 ## Portfolio -- software
 
 ### [Daniel's XL Toolbox](https://xltoolbox.net)
 
+Daniel's XL Toolbox is an add-in for Excel that assists with data analysis
+and visualization.
+
 {{< figure src="xltoolbox.png">}}
 
 Even though I haven't been able to work on this project for quite some time,
@@ -50,7 +59,7 @@ reference articles from [Pubmed](https://pubmed.gov) by PMID.
 
 ### Github Star History
 
-[![Star History Chart](https://api.star-history.com/svg?repos=bovender/LinkTitles,bovender/xltoolbox,bovender/pubmedparser&type=Date)](https://star-history.com/#bovender/LinkTitles&bovender/xltoolbox&bovender/pubmedparser&Date)
+[![Star History Chart][sh]][sh]
 
 ## Server administration
 
@@ -59,3 +68,6 @@ This includes running a mail and an IMAP server, hosting my own
 [Nextcloud](https://nextcloud.com) and [Gitea](https://gitea.io) instances,
 [Mastodon for Nephrology](https://neph.social)
 and more. Almost all of my services are dockerized.
+
+
+[sh]: https://www.star-history.com/#bovender/linktitles&bovender/pubmedparser&bovender/imapcli&bovender/xltoolbox&Date