update AppVeyor config
update AppVeyor config

solent/asciidoctorj,ysb33r/asciidoctorj,ancho/asciidoctorj,danielgrycman/asciidoctorj,robertpanzer/asciidoctorj,solent/asciidoctorj,danielgrycman/asciidoctorj,ysb33r/asciidoctorj,asciidoctor/asciidoctorj,robertpanzer/asciidoctorj,lefou/asciidoctorj,solent/asciidoctorj,danielgrycman/asciidoctorj,abelsromero/asciidoctorj,lefou/asciidoctorj,lefou/asciidoctorj,ysb33r/asciidoctorj,solent/asciidoctorj,abelsromero/asciidoctorj,lefou/asciidoctorj,ancho/asciidoctorj,ancho/asciidoctorj,ysb33r/asciidoctorj,asciidoctor/asciidoctorj,danielgrycman/asciidoctorj,asciidoctor/asciidoctorj,abelsromero/asciidoctorj,robertpanzer/asciidoctorj