Arcanedev\SeoHelper\Contracts\Entities\Keywords::add PHP Method

    public function add($keyword);

 /**
  * Add a keyword.
  *
  * @param  string  $keyword
  *
  * @return \Arcanedev\SeoHelper\SeoMeta
  */
 public function addKeyword($keyword)
 {
     $this->keywords->add($keyword);
     return $this;
 }