add: sdkman to manage java versions

[Natan Deitch]

I'm Submitting a ...

[ ] Bug report
[X] Tool/language/etc documentation request

Tool/Language/etc

Hey,

I'm a Java Developer, and I use sdkman to manage Java versions (and other sdks).

Do you think that is valuable add this config on Java setup or in a different topic?

If so, I'll be pleasure to make a pr.

[Simon Egersand]

I think it sounds useful, go for it!

[Kamlesh]

This has been fixed and will be available on the website once the new gitbook release is deployed