add info about cloneremind also to tutorial 1

[robertpietzcker]

Feature Summary

the more efficient way of getting REMIND is only described in tutorial 0, but not in tutorial 1

Benefit

make it more likely newcomers use the efficient version

Feature Details

as I am not a git expert and don't get the additional parts of the clone command in tutorial 1, I don't want to add the info myself in order not to confuse people.

Please confirm the following

• I have searched to see if this feature has been requested before.
• I have provided details and context for the feature.