change cider documentation in wiki to mention that cider 1.0.0 has a default krell repl

[apostolou]

Thanks a lot for Krell !

cider 1.0.0 has a default krell repl see commit here.

As a user you just need to add in your .dir-locals.el file and the directly call cider-jack-in-cljs
((nil . ((cider-default-cljs-repl . krell))))

Could we update the wiki doc to include this ? (I'm glad to make a PR if needed).
Thx