[Tails-l10n] translating custom program

Hi,

I found a couple of small mistakes in the French translation of the
"Tails Persistence Setup" custom program.

I have one repository (https://git-tails.immerda.ch/mampa/tails/) in
which I cloned https://git-tails.immerda.ch/tails/

Is there a way to clone https://git-tails.immerda.ch/persistence-setup
in this same repository ?

I looked at 'git submodule' but it seems to me that it will not work.

Is this explained on the web-site somewhere?

Best
Mampa

--
My PGP public key: https://posteo.de/keys/mampa@posteo.net