Merge branch 'trizzi-master-patch-65251' into 'master'

Remove section about special characters

See merge request gitlab-org/gitlab!20854

doc/user/packages/container_registry/index.md

@@ -144,7 +144,6 @@ project or branch name. Special characters can include:
 
 - Leading underscore
 - Trailing hyphen/dash
-- Double hyphen/dash
 
 To get around this, you can [change the group path](../../group/index.md#changing-a-groups-path),
 [change the project path](../../project/settings/index.md#renaming-a-repository) or change the branch