To create a menu, you need to go to Admin Panel / Appearance / Menu .

OR

You need to create menu from / Customize / Menus / Create Menu .

You can create more menus in a similar way. After creating a menu, you need to add pages to that menu.
After creating the menu, you need to add pages, posts, categories, and custom links to that menu. To add such first you need to create some pages, posts, categories, or custom links for the menu.

Two locations are available in this theme:

• • Primary: This setting allows the user to set Primary/Main menu.
  • Social: This setting allows the user to set the topbar Social menu.