Integrated: Cleaned up internal links and added a note-style

[Jesper Wilhelmsson]

On Thu, 20 Jul 2023 18:44:02 GMT, Jesper Wilhelmsson <jwilhelm at openjdk.org> wrote:

> Pandoc doesn't require internal links to have the second "link"-part of the markdown link, so removing that throughout the guide to make it slightly easier to read the source.
> 
> Added a new note-style to clean up the source slightly more, and enable a consistent style for notes.
> 
> Added comment about not closing JBS issues with open sub-tasks.
> 
> Added comment about using sub-tasks for problemlisting.

This pull request has now been integrated.

Changeset: 4211ec0b
Author:    Jesper Wilhelmsson <jwilhelm at openjdk.org>
URL:       https://git.openjdk.org/guide/commit/4211ec0b8d185bea182586ba73a90e1a11ff8791
Stats:     111 lines in 14 files changed: 21 ins; 23 del; 67 mod

Cleaned up internal links and added a note-style

Reviewed-by: iris

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PR: https://git.openjdk.org/guide/pull/110