Be more specific about the need to clone or use web interface

[Sabryr]

git-collaborative/content/same-repository.md

Line 114 in 40409ea

**Exercise tasks**:

We need to be more specific about where the learner to be before asking to create a new branch (step 2 in the exercise) . The reason is that the exercise can be completed either on terminal or on web and the if on the terminal a cloning step is needed.

Ideally two tabs, one for web and one for terminal would make this more disambiguates.

[Sabryr]

The description is given solution hints . May be some learners would like to try it on their own before looking at the solutions