RFR: CODETOOLS-7903567: JMH: Improve README guidance for archetype bootstrap

[Aleksey Shipilev]

On Sat, 30 Sep 2023 16:18:51 GMT, abyrne133 <duke at openjdk.org> wrote:

> Attempting to execute the "mvn archetype:generate" command specified in Step 1 of Preferred Usage in the README will result in a maven execution error if you interpret it like I did! In my case I naively interpreted the following text to mean that I could create a sub project within the test folder of my already existing java project. "test" is the default test folder!
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>> "Step 1. Setting up the benchmarking project. The following command will generate the new JMH-driven project in test folder:"
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> This resulted in 10-15 minutes of trying to figure out if I needed to install something new to use mvn archetype - as I have not used it before.
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> This change might make it easier for users to get set up with JMH project templates.

@abyrne133 Are you planning to integrate this?

Say `/integrate`, as per bot comment :)

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PR Comment: https://git.openjdk.org/jmh/pull/123#issuecomment-1877442266
PR Comment: https://git.openjdk.org/jmh/pull/123#issuecomment-1877449986