Both the Go and the Rust implementation of starlark have installation instructions. The Java implementation does not. It'd be nice to fill out the Java installation docs. It's not obvious to me where those docs belong (here? in a readme in https://github.com/bazelbuild/bazel/tree/master/src/main/java/com/google/devtools/skylark? in a separate/new repo just for java starlark?), but it'd be nice to have them somewhere.