Update the open-source readme with a stronger warning since we are giving access to more people.
+> # PLEASE BE ADVISED: This repository is an early access of not finalized product. Build support for open-source is incomplete and access is mostly provided for GWT-SDK migrators.
J2CL
====
-> *THIS REPOSITORY IS AN EARLY_ACCESS OF J2CL AND SHOULD NOT BE DISCUSSED
-PUBLICLY.*
-
J2CL is a transpiler from Java to Closure style JavaScript.
The project enables easy reuse of Java libraries in JS applications by
generating JS that tightly optimizes and correctly type-checks in
