redirect courses to HIDA catalogue

courses.md

+---
+title: HIFIS Courses, Education & Training
+title_image: default
+layout: default
+redirect_to: https://www.helmholtz-hida.de/course-catalog/en/?search%5Bfilter%5D%5B0%5D=tags%3AHIFIS
+excerpt:
+    HIFIS Education & Training
+---