add: constant value

object NewsConstant {

    const val CATEGORY_BUSINESS = "business"
    const val CATEGORY_ENTERTAIMENT = "entertainment"
    const val CATEGORY_GENERAL = "general"
    const val CATEGORY_HEALTH = "health"
    const val CATEGORY_SCIENCE = "science"
    const val CATEGORY_SPORTS = "sports"
    const val CATEGORY_TECHNOLOGY = "technology"

}