Merge pull request rails#28047 from Erol/fix-i18n-documentation-typo

Fix typo in I18n Guide [ci skip]

Author: senny

guides/source/i18n.md

@@ -417,7 +417,7 @@ If your translations are stored in YAML files, certain keys must be escaped. The
 Examples:
 
 ```erb
-# confing/locales/en.yml
+# config/locales/en.yml
 en:
   success:
     'true':  'True!'