Editing php for "Title"

Hi there –

On this site: https://infocusediting.com

When you click an image under ‘Available Services’ on the Homepage, I’d like the Title in the purple bar of the next page to have the same Title that shows below that image on the Homepage

For example, this page: https://infocusediting.com/slider/document-editing — The purple bar should read “Document Editing”

This page: https://infocusediting.com/slider/english-language-fluency-assistance — The purple bar should read “English Language Fluency Assistance”

etc….

I’m hoping this is an easy fix? I do have HTML and css experience, but I believe this would involved editing .php code — which I can do, just not sure how to find!