Change the GSHHG note to include - WVS does not include Antarctica

[prakrutkansara]

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Description of proposed changes
I was not sure where exactly to put in the note.

Fixes #

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[PaulWessel]

Suggested change

	part from Antarctica, all level-1 polygons (ocean-land boundary) are derived from
	Apart from Antarctica, all level-1 polygons (ocean-land boundary) are derived from

Needs to be Apart, not Part.