[ANNOUNCE] PF4J organization

[Decebal Suiu]

Hi,

I decided to move all my projects related to PF4J to its organization.
I am the creator that just happens to be the first contributor, nothing more. I am a contributor like other contributors.
This move is a great way to show my openness.

If you cloned one of these repositories in the past, you can easily switch to the new Git URL via the following command:

git remote set-url origin https://github.com/pf4j/PROJECT.git

where PROJECT will be replaced with pf4j, pf4j-update, pf4j-spring, ...