docs: Update cover

Author: MichaelCurrin

docs/_coverpage.md

@@ -6,7 +6,7 @@
 - :hourglass_flowing_sand: Setup an elegant, responsive, fast site in a few minutes
 - :open_file_folder: - Content comes from markdown files in your _docs_ directory - no templating syntax to learn
 - :pushpin: No compiling needed and no templating syntax to learn
-- :hammer:Easy to configure
+- :hammer: Easy to configure navbar and optional menus - Docsify can even create the navbar for you.
 - :nut_and_bolt: Built on [Docsify-JS](https://docsify.js.org/)
 - :pushpin: No local dependencies - library loads in the browser
 - :pizza: Serve locally or on Github Pages / Netlify