* Add Recipe doc for implementing AMP on a site
* Fix typos
* Add section on using a different page template for AMP
* Move AMP recipe out of images
Not very image specific anymore
* Wording tweaks and grammar fixes
- items longer then the page height are no longer broken by the submenu footer
- long lists of submenu items are no longer blocked by the footer (version number)
Other changes
- documents listing template - clean up white space
Documentation changes (editors manual)
- update images
- remove popular tags mention as this is no longer applicable
- add references to 'collection'
Resolves #2827
* note Python 3.8 support as provisional
* Remove mentions of minor doc fixes (there are many more fixes beyond the ones mentioned here, and including them all in the release notes would add too much noise...)
As per #5620 - signals are often overlooked as a way of customising model-level behaviour. We should recommend them over admin hooks where possible, as they aren't reliant on users taking one particular path through the admin - for example, an 'add document' signal will be triggered regardless of whether a document is created through the single uploader, multiple uploader, chooser model or a scripted task, whereas a hook would not catch all of these cases.
Fixes #5539. Transifex and Django's makemessages command have validation to catch invalid placeholder variables within translated strings - for example, where the translator has translated the variable name - but these only recognise old-style `%` formatting, not the `format` method, and so it's better for us to standardise on % formatting.
To reduce the burden on translators having to re-translate these strings, only the ones using named placeholders (`"Edited page {title}"`) rather than numeric ones (`"Edited page {0}"`) have been changed - hopefully the latter give less room for error.
Also fixed some incorrect use of plurals (verbose_name vs verbose_name_plural) in snippet confirmation messages.
- Typo in readme (verb did not agree with the subject)
- Grammatical error in topics/pages
- #5364 - Update URL config code block in getting-started/integrating-into-django
Work on compatibility is ongoing while Django 3.0 is still in development; we don't want this to be misinterpreted as a statement of formal Django 3.0 support (which we can't promise until the final release)
