RFR: 8316003: Update FileChooserSymLinkTest.java to HTML instructions [v3]

[Phil Race]

On Tue, 12 Sep 2023 15:27:18 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> To demonstrate the functionality of HTML formatting in `PassFailJFrame`, I updated the instructions for the `test/jdk/javax/swing/JFileChooser/FileChooserSymLinkTest.java` test. The commands to create the symbolic links are marked up with monospace font, which makes them stand out. The test instructions for single- and multi-selection are emphasised with bold text.
>> 
>> This change depends on #15660 and [JDK-8294158](https://bugs.openjdk.org/browse/JDK-8294158).
>
> Alexey Ivanov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Amend indentation of nested <li> elements

Noted that this depends on other PRs

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Marked as reviewed by prr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15661#pullrequestreview-1636244915