specs: vatikan: Add a reference to where the info came from

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/specs/vatikan.game.toml b/specs/vatikan.game.toml
index 0a8716a6e6a53cf771379df37f95b777a1cc53e3..58e63625dc9a1789a73af145899ea14589faae66 100644 (file)
--- a/specs/vatikan.game.toml
+++ b/specs/vatikan.game.toml
@@ -13,6 +13,9 @@
 #   Machiavelli
 #   Shanghai
 #   Finagle
+#
+# Inforemation about game variants from:
+#  https://www.pagat.com/rummy/carousel.html
 
 table_size = [300, 200]
 table_colour = "#bbd"