RFR: 7903426: jcstress: Polish README.md

[Aleksey Shipilev]

On Tue, 31 Jan 2023 14:54:59 GMT, Johnny Lim <duke at openjdk.org> wrote:

> This PR polishes the `README.md` file a bit.

Thank you. This is good, apart from two comments.

README.md line 55:

> 53: 
> 54: You should have Git and Maven installed to check out and build the tests.
> 55: You will need JDK 11+ to compile all the tests. Most tests are runnable on JDK 8+

Let's say "You will need JDK 17+ to compile all the tests"? There might be some APIs that require 17.

README.md line 118:

> 116: ## Reporting Harness and Test Bugs
> 117: 
> 118: If you have the access to [JDK Bug System](https://bugs.openjdk.org/secure/Dashboard.jspa), please submit the bug there:

Cut out `secure/Dashboard.jspa`. Just the site name should be fine.

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Marked as reviewed by shade (Committer).

PR: https://git.openjdk.org/jcstress/pull/131