docs: Add klingt.net to the showcase gallery

docs/content/showcase/klingt-net.md

@@ -0,0 +1,15 @@
+---
+date: 2016-05-15T23:18:16+02:00
+description: "klingt.net is the personal homepage of Andreas Linz."
+license: ""
+licenseLink: ""
+sitelink: https://klingt.net/
+sourceLink: https://github.com/klingtnet/klingt.net
+tags:
+- personal
+- blog
+- programming
+thumbnail: /img/klingt-net-tn.png
+title: klingt net
+---
+