Before acting on a proposed amendment, the Township Council shall hold a public hearing thereon. Notice of such public hearings shall be published once each week for two successive weeks in a newspaper of general circulation in the Township. Such notice shall state the nature of the amendment to be considered; the full text thereof, or a brief summary setting forth the principal provisions in reasonable detail; and a reference to a place within the Township where copies of the proposed amendments may be examined. The first publication shall not be more than 30 days or less than 14 days from the date of the hearing.