use Magento\Framework\Setup\InstallDataInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\ModuleDataSetupInterface;
use Magento\Eav\Setup\EavSetup;
use Magento\Eav\Setup\EavSetupFactory;
use Magento\Catalog\Model\Category;
use Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface;

class InstallData implements InstallDataInterface
{
    private $eavSetupFactory;

    public function __construct(EavSetupFactory $eavSetupFactory) {
        $this->eavSetupFactory = $eavSetupFactory;
    }

    public function install(
        ModuleDataSetupInterface $setup,
        ModuleContextInterface $context
    ) {
        $setup->startSetup();
        $eavSetup = $this->eavSetupFactory->create(['setup' => $setup]);
        $eavSetup->addAttribute(
            Category::ENTITY,
            'short_description',
            [
                'type'                     => 'text',
                'label'                    => 'Short Description',
                'input'                    => 'textarea',
                'source'                   => '',
                'visible'                  => true,
                'default'                  => '',
                'required'                 => false,
                'sort_order'               => 51,
                'global'                   => \Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface::SCOPE_STORE,
                'wysiwyg_enabled'          => true,
                'is_html_allowed_on_front' => true,
                'group'                    => 'General Information'
            ]
        );
        $setup->endSetup();
    }
}