docs: Require American spelling in documentation

It's the standard spelling choice in Python, Django, JavaScript, CSS and most of Django CMS's codebase itself
django-cms · fsbraun · May 22, 2025 · Apr 26, 2025 · May 22, 2025 · Apr 26, 2025
commit a28cce25ebcc6235b76d8193ddfbe5aa83b87ac7
diff --git a/docs/conf.py b/docs/conf.py
@@ -286,7 +286,7 @@
 #     extensions.append("sphinxcontrib.spelling")

 # Spelling language.
-spelling_lang = 'en_GB'
+spelling_lang = 'en_US'

 # Location of word list.
 spelling_word_list_filename = 'spelling_wordlist'

diff --git a/docs/contributing/documentation.rst b/docs/contributing/documentation.rst
@@ -18,7 +18,7 @@ Documentation should be:
 - written using valid Sphinx_/restructuredText_ syntax (see below for specifics); the
  file extension should be ``.rst``
 - wrapped at 100 characters per line
- written in English, using British English spelling and punctuation
+- written in English, using American English spelling and punctuation
 - accessible - you should assume the reader to be moderately familiar with Python and
  Django, but not anything else. Link to documentation of libraries you use, for
  example, even if they are "obvious" to you
@@ -135,8 +135,8 @@ You need to check your spelling before submitting documentation.

 .. important::

-    We use British English rather than US English spellings. This means that we use
-    *colour* rather than *color*, *emphasise* rather than *emphasize* and so on.
+    Prefer American English spelling, as it is the standard used in Python, Django,
+    JavaScript, CSS and Django CMS.

 Install the spelling software
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~