I'm new to wordpress and tried to Google and looked up codex but it didn't help. I downloaded a free theme from Github and I'm trying to learn how to make a theme by looking at its code. In the header.php I found this piece
<nav class="mainnav" role="navigation"> <?php wp_nav_menu( array('menu' => 'Main Menu', 'container' => 'false' )); ?> </nav>
I couldn't get this part "
array('menu' => 'Main Menu', 'container' => 'false' ));"
Also I couldn't find the navigation markup anywhere in the theme.