[1.5.x] Fixed #20263 -- Corrected wording in the formset documentation.

Thanks to feraudyh at yahoo.com for the report.

Backport of 1de63cccb1 from master.
[1.5.x] Fixed #20262 -- Replaced a reference to the wrong model in the CBV doc.

Thanks to mossplix for the review and bmispelon for the review.

Backport of b0bbccf from master.
[1.5.x] Fixed #20266 -- Updated view example in CBV introduction

Thanks jim at hellolocals.com for the report.
Backport of 58b3a974fc from master.
[1.5.x] Fixed #20286 - Typo in static files docs.

Thanks bmispelon.

Backport of f71fdf83a8 from master
[1.5.x] Fixed #20285 - Added missing commas in translation docs.

Thanks cody.j.b.scott@

Backport of 9f7b277d2e from master
[1.5.x] Fixed #20270 -- Fixed error in AjaxResponseMixin documentation

Backport of 73c26f0c95 from master.
[1.5.x] Fixed #20307 -- Word repeated in tutorial.

Replaced "the the" in the tutorial with "the".

Backport of f17aa99 from master.
[1.5.x] Fixed the reusable apps docs to use a rst file extension for the README and follow PEP8 a bit more.

Backport of 949b4e94588e73067f64b5b6d22e569a105baaf7 from master.
[1.5.x] Fixed a rST bug in the README template in the reusable apps docs.

Backport of db394e6ab2c1d3d53b8b8d691e995d0c3584b944 from master.
[1.5.x] Updated Transifex links to the Django project

Translations for the Django framework are now hosted on the
django-core Transifex project, and the django project is only
dedicated to a team-only hub project.
Backport of 8f7276b782 from master.
[1.5.x] Fixed #19252 -- Added support for wheel packages.

Backport from master (a5becad9094e5c5403b692b9a7b3a6ffaabf64a3).

Signed-off-by: Jannis Leidel <jannis@leidel.info>