Have you checked the site license? If not, read this before posting!
Joomla! Documentation uses two licences:
- Pages in the Help: namespace all have a thick grey border around them, indicating that their content is released into the public domain. Do not make edits to these pages unless you are comfortable releasing your contributions in this way.
- All contributions to Joomla! Documentation are considered to be released under the Joomla! Electronic Documentation License (see copyrights for details).
- All contributions to Joomla! Documentation may be edited, altered, or removed by other contributors. If you don't want your writing to be edited mercilessly and redistributed according to this license, then don't submit it here.
- Only public domain resources can be copied without permission—this does not include the vast majority of web pages or images.