You can change code, text, class or remove output of Read more button at all, using one of the following methods.
How to remove link Read More after article announcement?
Add the following snippet to file functions.php
of child theme or plugin FunctionsPHP:
How to remove anchor #more in the link Read more?
Add the following snippet to file functions.php
of child theme or plugin FunctionsPHP:
How to change text, HTML code or CSS class of Read more link
Edit lines 5-6 as you need in the following function and add it to file functions.php
of child theme or plugin FunctionsPHP: