Hi
You need to make some small changes in custom-functions.php file
Go to Appearance -> Editor -> inc/custom-functions.php
at line no. 804 you will find the below code
<div class="news">
<h5>'.get_the_title().'</h5>
<p>'.wp_trim_words( get_the_content(), of_get_option('newscontentlength'), '...' ).'</p>
<div class="view-all-btn"><a href="'.get_permalink().'">'.of_get_option('readmoretext').'</a></div>
</div>
Now just replace this with below modified code
<div class="news">
<h5>'.get_the_title().'</h5>
<p>'.get_the_content().'</p>
</div>
This will display complete text without Read More button.
Regards
Grace Themes