public function addMeta($meta, $value = null, $name = 'name')
{
// multiple metas
if (is_array($meta)) {
foreach ($meta as $key => $value) {
$this->metatags[$key] = [$name, $value];
}
} else {
$this->metatags[$meta] = [$name, $value];
}
return $this;
}