The home rule charter adopted by any county may be amended or repealed by a proposal by the governing body of the county or by petition of the number of electors provided in section 11-09.1-01, submitted to and ratified by the qualified electors of the county. A petition to amend or repeal a home rule charter must be submitted to the governing body of the county. Within thirty days of receipt of a valid petition or approval of a proposal to amend or repeal a home rule charter, the governing body of the county shall publish any proposed amendment or repeal of a home rule charter once in the official newspaper of the county. At least sixty days after publication, the proposed amendment or repeal must be submitted to a vote of the qualified electors of the county at the next primary or general election. The electors may accept or reject any amendment or a repeal by a majority vote of qualified electors voting on the question at the election.