review feedback:
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6. Generate an application image from a non-modular JAR file

I think this means to say "Create a non-modular application image"

When I run it, it does fail and does not accept modular JAR files.

$ jpackage create-image --input dist --main-jar hi.jar -n Hello --output myapp1 --force
Exception: java.lang.Exception: Error: Modules are not allowed in srcfiles: [dist/hi.jar, dist/lib/lib.jar].
Error: Bundler "Mac Application Image" (mac.app) failed to produce a bundle.

A modular JAR can run on the class path as a non-modular app. This seems very restrictive. I would expect we should support it as libraries should migrate to a modular JAR in order to run on 8u and new releases as modules.
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