doc: fix formatting. Fix formatting: Change one example quoting info from another doc to blockquote not highlighed pre block. use :: to force some examples to be highighted. Use '.. code-block:: text' to force no highlighting for plain text example blocks.

License
=======

Roundup is Free Software under the following license (from the file
COPYING.txt in the software distribution):

.. raw:: html

   <div class="file_insert">

.. include:: ../COPYING.txt

.. raw:: html

   </div>