Fix missing word issue on nav-tabs page (twbs#38688)

Fix the sentence:

> Force your .nav’s contents to extend the full available width one of two modifier classes.

to:

> Force your .nav’s contents to extend the full available width with one of two modifier classes.

site/content/docs/5.3/components/navs-tabs.md

@@ -190,7 +190,7 @@ Take that same HTML, but use `.nav-underline` instead:
 
 ### Fill and justify
 
-Force your `.nav`'s contents to extend the full available width one of two modifier classes. To proportionately fill all available space with your `.nav-item`s, use `.nav-fill`. Notice that all horizontal space is occupied, but not every nav item has the same width.
+Force your `.nav`'s contents to extend the full available width with one of two modifier classes. To proportionately fill all available space with your `.nav-item`s, use `.nav-fill`. Notice that all horizontal space is occupied, but not every nav item has the same width.
 
 {{< example >}}
 <ul class="nav nav-pills nav-fill">