README.adoc in asciidoctor-epub3-1.5.0.alpha.10 vs README.adoc in asciidoctor-epub3-1.5.0.alpha.11

@@ -1,8 +1,8 @@
 = {project-name}: A _native_ EPUB3 converter for AsciiDoc
 Dan Allen <https://github.com/mojavelinux[@mojavelinux]>; Sarah White <https://github.com/graphitefriction[@graphitefriction]>
-v1.5.0.alpha.10, 2020-01-20
+v1.5.0.alpha.11, 2020-01-26
 // Settings:
 :experimental:
 :idprefix:
 :idseparator: -
 :imagesdir: data/samples/images
@@ -249,10 +249,10 @@
 NOTE: Eventually, we envision introducing a dedicated block macro to represent a spine item so that we don't overload the meaning of the include directive.
 However, for the time being, the include directive fills this role.
 
 == Prerequisites
 
-All that's needed to use {project-name} is Ruby 2.3 or newer and a few Ruby gems, which we'll explain how to install in the next section.
+All that's needed to use {project-name} is Ruby 2.3 or newer and a few Ruby gems (including at least Asciidoctor 1.5.3), which we'll explain how to install in the next section.
 
 To check if you have Ruby available, use the `ruby` command to query the installed version:
 
  $ ruby --version