Increase largest PLAC example (#514)

* Increase largest PLAC example

resolves #512

* Update specification/gedcom-3-structures-3-meaning.md

specification/gedcom-3-structures-3-meaning.md

@@ -1122,7 +1122,7 @@ A name given to a foundling orphan might be
 The principal place in which the superstructure's subject occurred,
 represented as a [List] of jurisdictional entities in a sequence from the lowest to the highest jurisdiction,
 where "jurisdiction" includes units in a political, ecclesiastical, and geographical hierarchies
-and may include units as large as a nation or as specific as a building, farm, or cemetery.
+and may include units of any size, such as a continent, "at sea", or a specific building, farm, or cemetery.
 As with other lists, the jurisdictions are separated by commas.
 Any jurisdiction's name that is missing is still accounted for by an empty string in the list.