Possibility to set another default lang for a course

[brospars]

Feature Request

Is your feature request related to a problem or unsupported use case? Please describe. We have courses in english only and we cannot set the default page in english. We cannot remove the french page so as a workaround we write the french page is in english but some text remains in french.

Example : https://www.fun-mooc.fr/fr/cours/machine-learning-python-scikit-learn/

Describe the solution you'd like Set a different default lang for some courses.

Do you want to work on it through a Pull Request? Yes I guess, I could