Open your ghost admin dashboard and find the code injection area. Now paste the following code what you want to override,
<script>
// Slider Options
var slider_post_limit = 3;
// Single Carousel
var carousel_slider_tag = "trending";
var carousel_slider_title = "Trending Videos";
var carousel_slider_limit = "all";
// Post Category One
var cateogry_one_title = "Appetizers Recipe";
var cateogry_one_tag_name = "recipe ";
var cateogry_one_post_limit = 8;
//Product And Review Section
var cateogry_two_title = "Animal Plannet";
var cateogry_two_tag_name = "animals ";
var cateogry_two_post_limit = 8;
// news_posts Section Option
var cateogry_three_title = "Wild And Nature";
var cateogry_three_tag_name = "nature";
var cateogry_three_post_limit = 8;
// Recent News Widget
var recent_posts_title = "Recent Posts";
var recent_posts_limit = 5;
</script>