RFR: 8378507: JavaFX CSS Reference skips heading levels: <h2> followed by <h4>

[Andy Goryachev]

Changing `<table>` -> `<h3>`.

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Commit messages:
 - h3

Changes: https://git.openjdk.org/jfx/pull/2085/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=2085&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8378507
  Stats: 79 lines in 1 file changed: 0 ins; 66 del; 13 mod
  Patch: https://git.openjdk.org/jfx/pull/2085.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/2085/head:pull/2085

PR: https://git.openjdk.org/jfx/pull/2085