change example to show adding image to running header
change example to show adding image to running header

mojavelinux/asciidoctor-pdf,DavidGamba/asciidoctor-pdf,asciidoctor/asciidoctor-pdf,asciidoctor/asciidoctor-pdf,abatalev/asciidoctor-pdf,dsisnero/asciidoctor-pdf,Hextremist/asciidoctor-pdf,abatalev/asciidoctor-pdf,mojavelinux/asciidoctor-pdf,dsisnero/asciidoctor-pdf,DavidGamba/asciidoctor-pdf,hmflash/asciidoctor-pdf,hmflash/asciidoctor-pdf,Hextremist/asciidoctor-pdf