You can easily replace your template's menu titles to reflect the names of your new Pages. To do so, you will need to rename the actual pages. Renaming your pages ensures that any other menus that you add will automatically reflect your page titles.
To replace your menu titles:
1. From the left side of the Editor, click the Pages icon to
open Pages.
2. Next to your page, click the settings icon.
3. In the Settings and SEO window, under Page Name, type a name for
your page.
4. Click Done.
Your menu titles change to reflect your renamed pages.
For more information about Pages, click
here.
For more information about Menus, click
here.