mathjax-cdn.adoc in asciidoctor-revealjs-5.0.0.rc1

- old
+ new

@@ -2,10 +2,10 @@
 // Demonstration of the Mathjax :mathjaxdir: attribute in action
 // :include: //head/link | //div[@class="slides"]
 // :header_footer:
 = MathJax
 :stem:
-:revealjsdir: https://cdn.jsdelivr.net/npm/reveal.js@3.9.2
+:revealjsdir: https://cdn.jsdelivr.net/npm/reveal.js@4.1.1
 :mathjaxdir: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/
 
 == Math Equation
 
 Using standard latexmath:[\LaTeX] syntax: