You need a ‘Home’ link for your menu so readers can find their way to start without any trouble.
See the Video
Follow the Instructions
If you prefer to follow with screenshots, go to Dashboard >> Appearance >> Menus
In these screenshots I’m using a menu which I’ve named “top”. I intend to use this as the menu on top of the page and I like to name things so that they’re easy to follow
To the left you see the available items for the menu. Your theme may have more, or less, available items but the setup is the same
Click on the little button next to Links to open it up
Add the link, remember it must be the full URL. To remind you, WordPress has already written in the beginning of the link. Fill in the link text
Press Add to Menu to add the link to the menu. Drag and Drop the link to where you want it.
I’m going to make this menu display across the top of the site. So I tick the Primary Navigation box
Don’t forget to save the menu