[pkg] Use io.open with utf-8 encoding to read long description from README
This forces decoding so that this is consistent between Python 2 and 3 as, in
Python 3, decoding which would occur anyways and may fail depending on the
environment locale settings.
Tutorials
~~~~~~~~~
We present a few 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
base/index
advanced/index
tools/windmill.rst
textreports/index
dataimport/index