RFR: Added section for newcomers [v6]

[Anthony Vanelverdinghe]

On Thu, 19 Nov 2020 04:58:18 GMT, Jesper Wilhelmsson <jwilhelm at openjdk.org> wrote:

>> Added a section to the introduction to set the expectations for new developers in the OpenJDK.
>> 
>> I also moved the mail list section up since it's also relevant in this context and should (imho) be the first thing to learn about when thinking about joining the community.
>
> Jesper Wilhelmsson has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fixed typos

README.md line 38:

> 36: * List JTReg `@key` conventions for different areas
> 37: * Document best practices around TEST.properties usage. See [PR#30](https://github.com/openjdk/guide/pull/30#issuecomment-714589551)
> 38: * How to work with the code in an IDE

This would be a great addition. There's already the [IDE Tooling & Support Group](https://openjdk.java.net/groups/ide-support/), but AFAICT it hasn't produced any documentation yet (though there's a [post](https://mail.openjdk.java.net/pipermail/ide-support-dev/2020-April/000030.html) by Bradford Wetmore on his NetBeans setup).

-------------

PR: https://git.openjdk.java.net/guide/pull/38