Fix links. HTML is hard.

index.html

@@ -37,7 +37,7 @@ <h3>Hey!</h3>
       We're building and scaling an end-to-end automated demand analysis
       and forecasting system using python, Databricks on Azure and our brains.
       Before that I did <a href="https://www.nature.com/articles/s41567-021-01394-x">particle physics research</a> during my PhD in Dortmund and at CERN.
-      I love to <a href="github.com/bixel">code</a> with a lot of <a href="https://www.neuesschwarz.de/">coffee</a>.
+      I love to <a href="https://github.com/bixel">code</a> with a lot of <a href="https://www.neuesschwarz.de/">coffee</a>.
       Feel free to contact me via <a href="mailto:[email protected]">
       [email protected]</a>.
     </p>