That theme is fully ready to be translated into other languages and could be easily translated with poedit.net application/software.

There have the .pot file inside the languages directory which will be used by the poedit application.

Here are simple steps:

• Install poedit and open it.
• Once the app is opened click Create new translation.
• Choose the pot file inside the theme themename/language directory.
• Once the translation is done, save the file according to your language code. Find a list of language codes at WordPress in your Language.
• When that’s done, simply upload the files to themename/language folder using FTP.
• Change the site language by going to WordPress > General > Settings and choose the target language from Site Language drop-down menu.