change foreign keys for salaries

sql/load.sql

@@ -163,7 +163,8 @@ CREATE TABLE IF NOT EXISTS "salaries" (
 	"player"	TEXT,
 	"salary"	NUMERIC,
 	PRIMARY KEY("year","player","team"),
-	foreign key("year","player","team") references "appearances"("year","player","team")
+	foreign key("player") references "people"("ID"),
+	foreign key("year","team") references "teamseasons"("year","team")
 );
 
 insert into salaries select distinct * from "transformed"."salaries";