Update Transifex links

wiki/src/contribute/how/translate/with_Transifex.mdwn

 [[!meta title="Translate Tails using Transifex"]]
 
 Most of Tails can be translated directly online, through a simple web interface,
-after logging in with [Transifex](http://transifex.com/).
+after logging in with [Transifex](https://www.transifex.com/).
 
 - [Tails
-  Greeter](https://www.transifex.com/projects/p/torproject/resource/3-tails-tails-greeter-pot/)
+  Greeter](https://www.transifex.com/otf/torproject/tails-tails-greeter-2pot/)
 - [Tails Persistence
-  Setup](https://www.transifex.com/projects/p/torproject/resource/3-tails-tails-persistence-setup-pot/)
-- [Tails Installer](https://www.transifex.com/projects/p/torproject/resource/3-tails-liveusb-creator-pot/)
-- [Tails Upgrader](https://www.transifex.com/projects/p/torproject/resource/tails-tails-iukpot/)
-- [Tails Perl library](https://www.transifex.com/projects/p/torproject/resource/tails-tails-perl5libpot/)
-- [WhisperBack](https://www.transifex.com/projects/p/torproject/resource/3-whisperback-whisperback-pot/)
-- [A set of various translatable strings](https://www.transifex.com/projects/p/torproject/resource/tails-misc/)
+  Setup](https://www.transifex.com/otf/torproject/3-tails-tails-persistence-setup-pot/)
+- [Tails Installer](https://www.transifex.com/otf/torproject/3-tails-liveusb-creator-pot/)
+- [Tails Upgrader](https://www.transifex.com/otf/torproject/tails-tails-iukpot/)
+- [Tails Perl library](https://www.transifex.com/otf/torproject/tails-tails-perl5libpot/)
+- [WhisperBack](https://www.transifex.com/otf/torproject/3-whisperback-whisperback-pot/)
+- [A set of various translatable strings](https://www.transifex.com/otf/torproject/tails-misc/)
 
 In order to get started with using Transifex, [you can watch their
 introductory video](https://www.youtube.com/watch?v=3y0x8q3Oj7Q).