Bump reveal.js dependency to version 5.x

[Kadalia]

Hello Martin,
Not a big deal, as simplemenu 2.0.1 works like a charm with reveal-js version 5.x, but package.json asks for version 4.x.
(I don't know enough deeply your plugins to ensure there will no side effects with reveal.js version 5, your call)
Easily fixed with npm i --force ... Not as clean as your plugins deserve :-)
Could you please plan to bump reveal.js dependency for the next releases ?
Thank you
Philippe

[gokula-krishna-dev]

Same for me. Please update the version.

[Martinomagnifico]

Working on an updated version, expect it in 2 weeks.