"The State of the Module System" should be marked as outdated

[mark.reinhold at oracle.com]

2017/7/27 6:31:19 -0700, volker.simonis at gmail.com:
> I think this has been mentioned before, but "The State of the Module
> System" under http://openjdk.java.net/projects/jigsaw/spec/sotms/ is
> outdated and constantly keeps confusing people. E.g. it still uses
> "requires public" instead of "requires transitive"

A major update of this document is in preparation.  In the meantime I've
added an explanatory note to the top of the current version.

- Mark