(a) The governing body of a general-law municipality may appropriate from its general fund an amount not to exceed five cents per $100 assessed valuation for the purpose of advertising the municipality and promoting its growth and development.
(b) Before the governing body may appropriate money under this section, a majority of voters voting in an election on the issue must approve the authority of the governing body to make appropriations under this section not to exceed the limit imposed by Subsection (a).