It shall be unlawful for any person or persons to assemble or gather within the Municipality with the intent to do an unlawful or disorderly act or acts, by force or violence against the Municipality, or residents therein, or who shall disturb the public peace, quiet, security, repose, or sense of morality. Any person or persons so assembled or gathered shall be deemed to be guilty of a misdemeanor. (Ref. 28-818 RS Neb.)