How to change "Read More" and "Your May also like" into spanish

Hi,
I just downloaded and activate the colormag theme. It looks awesome!
However my website is in spanish and everything is ok except for 2 things :
1. How can I make the “read more” button to be in spanish?
2. How can I make the “Your may also like” sentence to be in spanish?

Is there maybe a plugin I could use?
Ot maybe I could enter some CSS into the “design option” of the customize menu? I know nothing of coding so if this is the solution, could I get the code I should enter?

Thanks a million!