Update README.md: only provide short usage info

[evpaassen]

The entire Getting Started Guide should be on the wiki, or in a separate docs folder, I think. We should only provide the most relevant info in the README.

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[evpaassen]

Perhaps some of the removed content should still be migrated...

[evpaassen]

Ref #154.

[serious6]

maybe exchange this with X.X-SNAPHOT to prevent future changes (same for groovy section).

[evpaassen]

However, if we'd keep the version number here, this would be the easiest way to determine the current project version for new users.

Many other projects have it this way, for example:

• Spring Framework
• HikariCP

The downside is indeed that with every release, the version number has to be updated in the README too.

[serious6]

I also can live with that until we have a nice gh-page 😉

[serious6]

👍

[serious6]

@evpaassen please add [ci skip] somewhere in the commit msg. We do not need to trigger a build for this change.

[evpaassen]

Done.

[serious6]

@evpaassen thanks for your contribution.