[Tails-l10n] (pull)[ca] wiki/src/blueprint/l10n_Catalan.mdwn

Hi,

We have a blueprint page for the Catalan team ready. Could you review
and pull, please.

https://gitlab.com/tails-ca/tails/blob/catalan/wiki/src/blueprint/l10n_Catalan.mdwn

Please, let me know if this is the right way to let you know when we
have code ready to be pulled.

Thanks

Tails-ca