Resolve "Integrate Course Material for "First Steps in Python""

Closes #441 (closed)

services/overall/learning-materials.md

@@ -49,7 +49,7 @@ If you find issues or would like to contribute, feel free to take a look at the
 | Data Visualization with _Matplotlib_ | [Material][python-matplotlib-material] | [Repository][python-matplotlib-repo] |
 | Test Automation                      | (In preparation)                       | [Repository][python-test-repo]       |
 
-[python-first-steps-material]: {{ "workshop-materials/python-first-steps" | relative-url }}
+[python-first-steps-material]: {{ "workshop-materials/python-first-steps/" | relative-url }}
 [python-first-steps-repo]: https://codebase.helmholtz.cloud/hifis/software/education/hifis-workshops/python-first-steps
 [python-matplotlib-material]: {{ "workshop-materials/python-matplotlib/" | relative_url}}
 [python-matplotlib-repo]: https://codebase.helmholtz.cloud/hifis/software/education/hifis-workshops/workshop-matplotlib