Adding Python GTK+ 3 Tutorial to Damned Lies

[Sebastian Pölsterl <sebp k-d-w org>]

Dear translation team,

I'm the author of The Python GTK+ 3 Tutorial 
(https://python-gtk-3-tutorial.readthedocs.io/) and recently was asked 
whether an integration with Damned Lies is possible (see 
https://github.com/sebp/PyGObject-Tutorial/issues/160). I never worked 
in translation before, therefore I'm not sure what would be required to 
make this happen.

The tutorial is written in reStructered text using Sphinx. While Sphinx 
has support for i18n, I'm not sure whether integration into Damned Lies 
is possible at all.

Any suggestions on what be the best way forward to make it easy for 
translators to contribute would highly welcome.


Best regards,
Sebastian