Documentations: remove contrext and period headers
Documentations: remove contrext and period headers

xlqian/navitia,CanalTP/navitia,CanalTP/navitia,pbougue/navitia,xlqian/navitia,kadhikari/navitia,patochectp/navitia,Tisseo/navitia,Tisseo/navitia,Tisseo/navitia,pbougue/navitia,kadhikari/navitia,pbougue/navitia,antoine-de/navitia,Tisseo/navitia,CanalTP/navitia,kinnou02/navitia,CanalTP/navitia,pbougue/navitia,kinnou02/navitia,CanalTP/navitia,xlqian/navitia,antoine-de/navitia,antoine-de/navitia,antoine-de/navitia,xlqian/navitia,kinnou02/navitia,kadhikari/navitia,patochectp/navitia,kinnou02/navitia,kadhikari/navitia,xlqian/navitia,Tisseo/navitia,patochectp/navitia,patochectp/navitia