Upgrade to Babel 7 and run npm audit fix

main.js

@@ -3,10 +3,15 @@ const asciidoctor = Asciidoctor()
 
 // Babel will move the import statement at the top of the file.
 // As a consequence, the reveal.js converter will be loaded before the initialization of Asciidoctor.js.
-import 'asciidoctor-reveal.js'
-// If we replace the import statement by a require statement then it's working.
-// Another way to fix this issue is to lazily load the reveal.js converter.
-//require('asciidoctor-reveal.js')
+//import 'asciidoctor-reveal.js'
+
+// To workaround this issue, we use replace the import statement by a require statement.
+require('asciidoctor-reveal.js')
+
+// Please note that asciidoctor-reveal.js 2.0.0 supports lazy loading.
+// The following should work with asciidoctor-reveal.js 2.0+
+//import AsciidoctorReveal from 'asciidoctor-reveal.js'
+//AsciidoctorReveal.register()
 
 const attributes = { revealjsdir: 'node_modules/reveal.js@' }
 const options = {