This charter may be amended, and a new charter may be framed and adopted, in any manner provided now or hereafter by the constitution and general laws of the state.
(a) 
If a court of competent jurisdiction holds any section or part of this charter invalid, such holding shall not affect the remainder of this charter nor the context in which such section or part so held invalid may appear, except to the extent that an entire section or part may be inseparably connected in meaning and effect with that section or part.
(b) 
If a court of competent jurisdiction holds a part of this charter invalid, or if a change in the state constitution or law renders a part of this charter invalid or inapplicable, the council by ordinance may take such appropriate action as will enable the city government to function properly.
This charter shall be deemed a public act and shall have the force and effect of a general law. It may be read in evidence without pleading or proof, and judicial notice shall be taken thereof in all courts and places without further proof.