Upload course has broken links

[han-f]

There are two links that are wrong and need to be fixed:

https://openenergyplatform.github.io/academy/courses/tutorials/api/OEP-oedialect_upload_from_csv/, should be https://openenergyplatform.github.io/academy/tutorials/api/OEP-oedialect_upload_from_csv/

https://openenergyplatform.github.io/academy/courses/tutorials/api/OEP-oedialect/, should be https://openenergyplatform.github.io/academy/tutorials/api/OEP-oedialect/ sein.

Workflow checklist

• [x] I am aware of the workflow in CONTRIBUTING.md

[Ludee]

Fixed the links.

[han-f]

thanks a lot!