There are occasions when you’d need to produce a heading within the SharePoint Fast Launch navigation without your heading getting navigable. In the past, I believe it had been possible to produce a heading without having specifying a URL, but in SharePoint 2013, the URL discipline is mandatory-at the very least from your Website Configurations interface. (See below for update.)
Option 1: enter “#” as the URL from Site Settings > Look and Feel > Quick Launch
Option 2: Use the “EDIT LINKS” option under the Quick Launch and leave the URL field empty.
Even though, the URL area is necessary from Website Configurations, you can depart it blank from this interface.
Each of those alternatives produce a link to the site’s house web page, nevertheless they let you develop a heading without having utilizing an complete URL to some random web page.
Update: Option 3:
There is certainly truly a way to get it done the previous fashioned way; it is just not that intuitive should you occur to test the UI for editing the fast Start previously mentioned. Go to Site Settings > Navigation after which scroll down to the Structural Navigation: Editing and Sorting area.