add link to Clase06

Author: guscastilloa

_projects/bitss.md

@@ -30,4 +30,6 @@ advancing  transparent, reproducible and Ethical research. The intention is prov
 - Clase 4
     - [Slides](https://guscastilloa.github.io/projects/teaching/Clase04/Clase04.html#/title-slide)
 - Clase 5
-    - [Slides](https://guscastilloa.github.io/projects/teaching/Clase05/Clase05.html#/title-slide)
+    - [Slides](https://guscastilloa.github.io/projects/teaching/Clase05/Clase05.html#/title-slide)
+- Clase 6
+    - [Slides](https://guscastilloa.github.io/projects/teaching/Clase06/Clase06.html#/title-slide)