oxTrust / oxAuth localization docs

[willow9886]

We need to review our content for these pages and make this as easy and clear as possible. Many orgs need to customize languages.

oxTrust is here: https://gluu.org/docs/ce/admin-guide/oxtrust-ui/#localization-of-oxtrust-ui

oxAuth is here: https://gluu.org/docs/ce/developer-guide/localization/

We should review the organization of these pages and improve this process.