interoperability (#88)

* Add interoperability

* fix link

* Fix duplicate link validation

* imporve error message

* Fix link

* fix interoperability icon

Author: grst

tutorial-registry/tutorials/interoperability/icon.png

@@ -3,7 +3,7 @@ description: |
     This document lists resources for conversion to other data formats and programming
     languages, e.g. R, Julia, ...
 link: https://scverse-tutorials.readthedocs.io/en/latest/notebooks/scverse_data_interoperability.html
-image: icon.webp
+image: icon.png
 primary_category: Tips & Tricks
 tags:
     - interoperability