Magento – Magento2 – language pack installation doesn’t work

I installed fresh Magento 2.1.0 installation.

After the installation completed, I checked that everything works good.

Now I want to change the language of the store to my language (Hebrew)

I downloaded the language pack files from here https://crowdin.com/project/magento-2/he

And use this guide:
http://www.vanderboon.net/wiki/Install_Magento_Crowdin_Translation with the following command lines:

 cd /var/www/html
 php bin/magento setup:static-content:deploy he_IL
 php bin/magento indexer:reindex
 php bin/magento cache:clean
 php bin/magento cache:flush
 chown -R www-data. .
 find . -type d -exec chmod 770 {} \; && find . -type f -exec chmod 660 {} \; && chmod u+x bin/magento

In the admin panel Stores -> System -> Configuration -> General -> General -> Locale Options -> Change Local to Hebrew and save.

Also in the right side -> Account settings (admin) -> Change Inteface Locale to Hebrew and save.

I don't see any change in the store or in admin panel.

What I did wrong?

Thanks!