How do I add a logo to my website?
I would like to know how to do add a logo to my website, before the site title.
html ?php language_attributes(); ?
head
meta charset="?php bloginfo( 'charset' ); ?" /
meta name="viewport" content="width=device-width, initial-scale=1"
link rel="profile" href="http://gmpg.org/xfn/11" /
link rel="pingback" href="?php bloginfo( 'pingback_url' ); ?" /
?php /* Embeds HTML5shiv to support HTML5 elements in older IE versions plus CSS Backgrounds */ ?
!--[if lt IE 9]
script src="?php echo get_template_directory_uri(); ?/js/html5shiv.min.js" type="text/javascript"/script
![endif]--
?php wp_head(); ?
/head
body ?php body_class(); ?
?php // Get Theme Options from Database
    $theme_options = smartline_theme_options();
?
div id="wrapper" class="hfeed"
    div id="header-wrap"
        ?php // Display Top Navigation
        if ( has_nav_menu( 'secondary' ) ) : ?
        nav id="topnav" class="clearfix" role="navigation"
            h5 id="topnav-icon"?php _e('Menu', 'smartline-lite'); ?/h5
            ?php wp_nav_menu(  array(
                'theme_location' = 'secondary', 
                'container' = false, 
                'menu_id' = 'topnav-menu', 
                'fallback_cb' = '', 
                'depth' = 1)
            );
            ?
        /nav
        ?php endif; ?
        header id="header" class="clearfix" role="banner"
            div id="logo" class="clearfix"
                ?php do_action('smartline_site_title'); ?
                ?php // Display Tagline on header if activated
                if ( isset($theme_options['header_tagline']) and $theme_options['header_tagline'] == true ) : ?            
                h2 class="site-description"?php echo bloginfo('description'); ?/h2
                ?php endif; ?
            /div
            div id="header-content" class="clearfix"
                ?php get_template_part('inc/header-content'); ?
            /div
        /header
    /div
    div id="navi-wrap"
        nav id="mainnav" class="clearfix" role="navigation"
            h4 id="mainnav-icon"?php _e('Menu', 'smartline-lite'); ?/h4
            ?php // Display Main Navigation
                wp_nav_menu( array(
                    'theme_location' = 'primary', 
                    'container' = false, 
                    'menu_id' = 'mainnav-menu', 
                    'echo' = true, 
                    'fallback_cb' = 'smartline_default_menu')
                );
            ?
        /nav
    /div
    ?php // Display Custom Header Image
        smartline_display_custom_header(); ?