Get rid of the "Sphinx documentation contents" level
Get rid of the "Sphinx documentation contents" level

All chapters were children of a "Sphinx documentation contents"
top-level chapter. Do like the LaTeX builder and remove that level (if
configured in conf.py).
brechtm/rinohtype,beni55/rinohtype,brechtm/rinohtype,beni55/rinohtype,brechtm/rinohtype