Adding link on navigation menu

Hi, I was doing hands-on according to section 10.2.5 in crash course. I am not able to add a link to navigation menu for the new dashboard. Anyone can suggest me how to add a navigation link for that?  
1 answers

Did you get as far as finding the navigation in the Project Explorer on the left? Open ‘Project <yourproject>’ and click navigation. 

The dashboard they mention is a page. So to “add the link to your dashboard” click ‘New Item’ and as action ‘Show a page’: