asciidoctor.adoc in asciidoctor-2.0.20

- old
+ new

@@ -1,8 +1,8 @@
 = asciidoctor(1)
 Dan Allen; Sarah White
 :doctype: manpage
-:release-version: 2.0.17
+:release-version: 2.0.20
 :man manual: Asciidoctor Manual
 :man source: Asciidoctor {release-version}
 ifdef::backend-manpage[:!author:]
 
 == Name