Providing for the submission to the qualified electors of the City of Philadelphia of the proposal set forth in a Resolution approved by Council proposing amendment of the Philadelphia Home Rule Charter relating to the election of the Council President by the voters at large (and reducing the number of other at large Councilmembers from seven to six), the filling of vacancies in the offices of Mayor and Council President, specifying the Council President's powers and duties, and permitting Councilmembers and an Acting Mayor to be candidates for certain other City offices without first resignin — Open Common Ground