Title the stem decision by its rule, and point doc.go's whole at surveyAt

doc.go

@@ -33,8 +33,8 @@ package fejkdata
 //   - family — a table and every table reaching it through a chain of
 //     `table.parentT`, named by the root that chain ends at: `table.familyRoot`.
 //   - whole — a read of a table with no selector and no descent, {/city}, landing on
-//     the `table` itself: it draws a row apart from every pin, so the fences keep the rows
-//     its cells stand in as `surveyAt.wholePins`, beside `surveyAt.wholeTable`.
+//     the `table` itself, so it draws a row apart from every pin:
+//     `surveyAt.wholeTable`, `surveyAt.wholePins`.
 //   - fence — a load-time check, so rendering a compiled tree cannot fail: `New`
 //     runs them over the data set, `NewTemplate` and `FakeStruct` over what those
 //     compile. The draw fences are `heldCheck`, `drawFence` and `checkFamilies`.