Here's an easy code snippet you can just pop into your Child Theme functions.php
:
// Add a home link to your menu
function childtheme_menu_args($args) {
$args = array(
'show_home' => 'Home',
'sort_column' => 'menu_order',
'menu_class' => 'menu',
'echo' => true
);
return $args;
}
add_filter('wp_page_menu_args','childtheme_menu_args');
If you want some more ideas on what you can add to your menu check out the codex page on wp_page_menu.