[jfx19] RFR: 8286678: Fix mistakes in FX API docs [v3]

[Nir Lisker]

On Thu, 18 Aug 2022 23:43:33 GMT, Nir Lisker <nlisker at openjdk.org> wrote:

>> Fixes the mistakes in the JBS ticket and some additional minor corrections.
>
> Nir Lisker has refreshed the contents of this pull request, and previous commits have been removed. Incremental views are not available.

`git reset --hard upstream/jfx19`
That gives an error

fatal: ambiguous argument 'upstream/jfx19': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'


I will close this PR and resubmit.

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PR: https://git.openjdk.org/jfx/pull/877