How do I translate strings in Twig templates? I am working on a (my first) Drupal 8 project witch is a multilingual site. Drupal 8 really delivers in terms of native support for content translation. 
However, I have a few strings set directly in some if the theme .Twig template files printed out like ex. 

{{ 'Read more'|trans }}


I am really stuck on where to handle the translation for strings like these within the Drupal 8 installation.

What steps do I need to take to be able to translate these strings into the language currently selected for on the site? Do I need any additional modules other than the ones included in Drupal 8 core?

Steps I have taken:


Activated the Content Translation &amp; Interface Translation modules
Added Twig strings like {{ 'Read more'|trans }}
Flushed cache and refreshed pages containing the strings
Checked admin/config/regional/translate for the strings with no result
You need to visit the page in a language that is not English to have them picked up. That should be enough.