docs(shipwrecks): refresh timing and the personal-text filter as they now work, rewrapped

CURRENT-STATE said each source is asked at most once a day; a failed source
is retried after 15 minutes. It now also covers refused short refreshes and
the page clearing expired wrecks, and its two shipwreck paragraphs are
rewrapped. The card's comment no longer says the records carry no names.

src/layers/shipwrecks/cards.js

@@ -54,9 +54,10 @@ export function cardLink(record) {
 }
 
 /**
- * Title and detail lines for one wreck card: deaths first, then when and where, then the ship facts. Only facts
- * about the ship: the records carry no names of people, and victims appear as
- * a count only.
+ * Title and detail lines for one wreck card: deaths first, then when and
+ * where, then the ship facts. Victims appear as a count only; free text that
+ * refers to a person by a title or role is dropped by a keyword filter (see
+ * records.js), which a bare name can still pass.
  * @param {object} record A normalized shipwreck record.
  * @returns {{title: string, details: string[], link: string}}
  */