Editing Preset Link Names to Match my Website Links

I used one of Homestead's premade website templates to create my own website. It was for a photographer so some of the preset link names that appear up in the navigation menu on my browser, say "portfolio" instead of "Villa Highlights" (as I created a site for our vacation home that we rent). While the buttons on the website say the page names that I want, the actual URL does not match (they still say "portfolio") How do I change this??