Hello,
You can hide a word “Archives” by using this custom CSS:
.archive .page-title span {
display: none;
}
If you want to change the name of the category then you can do it in your Dashboard. Please check this video tutorial on how to change a category name in WordPress: https://www.youtube.com/watch?v=t2Ir7xXmBfA
By default, WordPress does not allow to upload a custom image for the specific category page, so in order to display a custom header image on your Courses archive page, please use this custom CSS:
.post-type-archive-lp_course #page .header-image {
background-image: url(https://i1.wp.com/developpa.io/wp-content/uploads/2018/02/Mini-Congas-new-BD.png) !important;
}
Where lp_course is a slug of your archive page. Note, if you will change the name of your category then the slug will also be changed. As a result, the custom CSS, that is posted above, will not work, unless you update the slug in the CSS.
Best,
Taras