Update CHANGELOG.rst

Co-authored-by: sourcery-ai[bot] <58596630+sourcery-ai[bot]@users.noreply.github.com>

Author: fsbraun

CHANGELOG.rst

@@ -6,7 +6,7 @@ Changelog
 ==================
 
 * fix: Force rediscovery of inline fields by @fsbraun in https://github.com/django-cms/djangocms-frontend/pull/272
-* fix: Bootstrap4 migration failed in some cases by @milonline-eu in https://github.com/django-cms/djangocms-frontend/pull/270
+* fix: Bootstrap 4 migration failed in some cases by @milonline-eu in https://github.com/django-cms/djangocms-frontend/pull/270
 
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