[multi-sources-removal] Kill repo.sources
there is only the system source in there now!
Related to #2919300
.. _Tutorials:
---------
Tutorials
---------
We present two tutorials of different levels. The blog building
tutorial introduces one smoothly to the basic concepts.
Then there is a photo gallery construction tutorial which highlights
more advanced concepts such as unit tests, security settings,
migration scripts.
.. toctree::
:maxdepth: 1
:numbered:
base/index
advanced/index
tools/windmill.rst
textreports/index