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// function.php

// option page
add_action('admin_menu', 'option_page_create');
function option_page_create() {
    $page_title = 'Theme Option';
    $menu_title = 'Theme Option';
    $capability = 'edit_posts';
    $menu_slug = 'ae_theme_option';
    $function = 'ae_theme_option_display';
    $icon_url = '';
    $position = 2;

    add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $function, $icon_url, $position );
}

function ae_theme_option_display() {
  if (!current_user_can('manage_options')) {
        wp_die('Unauthorized user');
    }

  if (isset($_POST['logo_subline'])) {
        $value = $_POST['logo_subline'];
        update_option('logo_subline', $value);
    }

    $value = get_option('logo_subline');

    include 'inc/ae-theme-option-page.php';
}

// form include page
<h1 style="margin-bottom:50px;">urban issues Theme Option Page</h1>

<form method="POST">
    <label for="logo_subline">Logo Subline</label><br/><br/>
    <!--<input type="text" name="logo_subline" id="logo_subline" value="<?php //echo $value; ?>"><br/><br/>-->
    <?php
          $content = get_option('logo_subline');
          wp_editor( $content, 'logo_subline', $settings = array('textarea_rows'=> '3') );
    ?>
    <br/><br/>
    <input type="submit" value="Save" class="button button-primary button-large">
</form>


// template output
<p class="logo-subline"><?php echo get_option( 'logo_subline' ); ?></p>