[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
.. _urlrewrite_module:
:mod:`cubicweb.web.views.urlrewrite`
=======================================
.. automodule:: cubicweb.web.views.urlrewrite
.. autoclass:: URLRewriter
:show-inheritance:
:members:
.. autoclass:: SimpleReqRewriter
:show-inheritance:
:members:
.. autoclass:: SchemaBasedRewriter
:show-inheritance:
:members: