Please can you help us? We want to make a website in 3 languages. But we don’t know how.

Using the GROW Blog theme,I found out that I can’t change the buttons that say “Read more”. These buttons are used to link to different pages and I would like to change the text on those buttons. The same goes for the one on the slider. I cannot change it through CSS;because I think that the code for those buttons is in the PHP (?).

I would appreciate any and all help regarding this matter.

Thank you in advance.

Kind regards.