RCP: 0.7.7, update first and second window of Ubuntu installation setup process

First screen
FR:

- “For your information” ->supprimer ou remplacer par “Information”
OK

- “(Your personal…” ->“(your personal…”
OK

• section “Installation Prerequisites” à supprimer + transférer le contenu “Ubuntu 12.04 or higher etc.” dans la page de garde ou transférer dans cette fenêtre tout ce qui relève des prérequis depuis la page de garde
  OK

Second screen
EN:

• update ‘TXM is community developed, so you must contribute back’ message

Using the content of https://groupes.renater.fr/wiki/txm-users/public/contribuer

MD : The content of the “contribuer” page, changed.

(from redmine: issue id 1191, created on 2014/12/12 by Serge Heiden)

assigned to @project_3134_bot_c287846fb4704c83fd27510cd997e5a9

added setup type::bug + 1 deleted label

changed milestone to %TXM 0.7.7

this window is no more shown

(from redmine: written on 2021/03/10 by Matthieu Decorde)

closed

assigned to @mdecorde and unassigned @project_3134_bot_c287846fb4704c83fd27510cd997e5a9