Add a README.

Change-Id: I80d6da6c7f2c6d5d81a39a6db57c83ad5325eee7
diff --git a/README b/README
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+This repository is used exclusively to push content to the live web server. With the exception of this README, the content in this repository is all generated.
+
+The source for this generated content is https://github.com/eclipse-ee4j/ee4j-website
+
+Make your contributions there.
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