[doc] fix warnings/errors in doc build
- fix links to images
- fix a couple of typos
- re-add IDownloadableOneLineView doc
- rename documenting.rst back to .txt, it's intended as a doc of how to
write rst, not part of the rst doc
Related to #4832808
Configuring the user interface
------------------------------
.. _relation_tags:
Relation tags
~~~~~~~~~~~~~
.. automodule:: cubicweb.rtags
.. _uicfg:
The uicfg module
~~~~~~~~~~~~~~~~
.. note::
The part of uicfg that deals with primary views is in the
:ref:`primary_view_configuration` chapter.
.. automodule:: cubicweb.web.views.uicfg
The uihelper module
~~~~~~~~~~~~~~~~~~~
.. automodule:: cubicweb.web.uihelper