RFR: 8356689: Make HotSpot Style Guide change process more prominent

[Aleksey Shipilev]

On Sat, 10 May 2025 23:27:28 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this change to the HotSpot Style Guide. It moves the description
> of the style-guide change process to near the beginning of the document,
> making it more prominent.
> 
> I propose this is an editorial change, as it just moves some text from one
> place to another.  As such, the normal HotSpot PR process applies.
> 
> The updated .html file was generated using `make update-build-docs`.

Marked as reviewed by shade (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/25169#pullrequestreview-2832216623