(1) The proceedings of the township board shall be published at least once each month. A publication of a synopsis of the proceedings, prepared by the township clerk and approved by the supervisor, showing the substance of each separate proceeding of the board is in compliance with this section.

  (2) The board shall determine the method of publication of all notices, ordinances, and proceedings for which the method of publication is not prescribed by law.

  (3) In making a determination under subsection (2), the board shall require 1 or both of the following:

  (a) That publication be made in a newspaper published and circulated in the township or, if no such newspaper exists, then in one published in the county in which the township is located.

  (b) That publication be made by posting in the office of the clerk and in 5 other public places in the township or by posting in the office of the clerk and on the township’s website.

  (4) If publication is made by posting under subsection (3)(b), a notice of the posting describing the purpose or nature of the notice, ordinance, or proceeding posted and the location of the places where posted shall be published at least once in a newspaper as required under subsection (3)(a) within 7 days of the posting.