README.adoc in asciidoctor-revealjs-1.1.1 vs README.adoc in asciidoctor-revealjs-1.1.3

@@ -109,9 +109,15 @@
 . Create content in a file (*.adoc, *.ad, etc.).
   See examples in <<Syntax Examples>> section to get started.
 
 . Generate HTML presentation from the AsciiDoc source
 
+  $ bundle exec asciidoctor-revealjs \
+    -a revealjsdir=https://cdnjs.cloudflare.com/ajax/libs/reveal.js/3.6.0 CONTENT_FILE.adoc
+
+. If you did the optional step of having a local reveal.js clone you can
+  convert AsciiDoc source with
+
   $ bundle exec asciidoctor-revealjs CONTENT_FILE.adoc
 
 TIP: If you are using https://pages.github.com/[GitHub Pages], plan ahead by keeping your source files on `master` branch and all output files on the `gh-pages` branch.