Move link to jupyterhub with correct profile up

README.md

 # 🚀 Microtraining Cosine in the IOP
 
+### Jupyterhub RWTH
+
+* [Jupyterhub RWTH Aachen University](https://jupyter.rwth-aachen.de/hub/spawn?profile=python-3.13)
+
 ## Repo Structure
 
 This repository presents four (including this readme) files:
@@ -37,6 +41,3 @@ You might find the following Links useful:
 * [Coscine Python SDK Repository](https://git.rwth-aachen.de/coscine/community-features/coscine-python-sdk)
 * [Coscine Python SDK Documentation](https://coscine.pages.rwth-aachen.de/community-features/coscine-python-sdk/)
 
-### Jupyterhub RWTH
-
-* [Jupyterhub RWTH Aachen University](https://jupyter.rwth-aachen.de/hub/spawn?profile=python-3.13)
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