To add a page to your main navigation, log in to the back end of your site and click on Appearance in the left side menu. Then click on Menus beneath Appearance.
Select Main (Primary Menu) from the drop-down list, and click Select.
Under Pages, tick the boxes next to the pages you want to add to your menu and click Add to Menu. The new page links will appear at the button of the Menu Structure. Drag and drop the page links to where you want them to appear in the menu and click Save Menu.
