How to add locales in Craft 3 I'm getting started with Craft, using version 3 beta, and I don't find the menu option for adding locales so I guess it's not yet ready but there must be another option.

Could anyone guide me through the process of creating a multi-language Craft 3 site?
"Sites" in Craft 3 replaces the old "Locales" concept in Craft 2. 

There's not much documentation on them yet, but the setup process is virtually the same as it is in Craft 2 for locales.  The main difference is that a "site" isn't necessarily tied to a language code, like it is in Craft 2.

https://craftcms.com/news/craft-3-multi-site


  Update: Localization docs for Craft 3