Edit element in wp how?

Hello,

I download a theme and one of the page shows the following button, i just want to change the name of the button but i can’t find where i could change this?

under style i find the button setup but where can i change the name”read more”?
it shows up in inspect element:

a href=”xxx/”>Read More</a

Thanks,

/* =Buttons
—————————————————————————– */
.themebutton,
button,
html input[type=”button”],
input[type=”reset”],
input[type=”submit”] {
color: #FFF;
text-align: center;
border: none;
background: #F33F3F;
-webkit-transition: all 0.3s ease;
-moz-transition: all 0.3s ease;
-ms-transition: all 0.3s ease;
-o-transition: all 0.3s ease;
transition: all 0.3s ease;