Adventurous Pro theme is translation ready.

Good morning Firstly I would like to thanks Sakin who helped me with my first steps to configure Adventure PRO. Now I'm quite advanced with my project and i'm looking for the translation. It's say that Adventurous Pro theme is translation ready. What does it mean and how to use it or what i've to add to get multilanguages facilities? Thanks in advance for your answers.çMy best regards. Alain