use [[= user_doc =]] to fix 3.3 links

Author: adriendupuis

docs/guide/internationalization.md

@@ -19,7 +19,7 @@ publishing the draft will not overwrite later modifications.
 
 ### Adding available languages
 
-The multilanguage system operates based on a global translation list that contains all languages available in the installation. Languages can be [added to this list from the Admin Panel](https://doc.ibexa.co/projects/userguide/en/latest/translating_content/) in the Back Office. After adding a language be sure to dump all assets to the file system:
+The multilanguage system operates based on a global translation list that contains all languages available in the installation. Languages can be [added to this list from the Admin Panel]([[= user_doc =]]/translating_content/) in the Back Office. After adding a language be sure to dump all assets to the file system:
 
 ```
 yarn encore <environment>

docs/guide/multisite/site_factory_configuration.md

@@ -88,7 +88,7 @@ ez_platform_site_factory:
             user_group_skeleton_remote_ids: [ <id_skeleton3>, <id_skeleton4>, ... ]
 ```
 
-Manage the permissions associated to the User Group skeleton by [assigning Roles](https://doc.ibexa.co/projects/userguide/en/latest/site_organization/organizing_the_site/#managing-permissions).
+Manage the permissions associated to the User Group skeleton by [assigning Roles]([[= user_doc =]]/site_organization/organizing_the_site/#managing-permissions).
 Make sure that the Roles that you assign to the User Group skeleton do not contain Location-based Limitations. 
 User Group skeletons cannot contain individual User Content items either.