help_tabs

Hi, the help tabs need to be defined like this:

'help_tabs'   => array(
    array(
        'title'   => 'General',
        'content' => '<p>This tab displays the general information about the theme.</p>',
    ),
    array(
        'title'   => 'Homepage',
        'content' => '<p>This tab displays the instruction for setting up the homepage.</p>',
    ),
)

Then it will display like this:

https://i.imgur.com/c7bIf3P.png

I will update the docs. Thanks for your question!