Hide a bolt of silk in the Small Granary

sisters/granary

@@ -8,7 +8,7 @@ enter_x 8
 enter_y 12
 msg
 Created:  1994-12-28
-Modified: 2008-10-28 Rick Tanner
+Modified: 2022-09-17 Rick Tanner
 endmsg
 end
 arch farmland
@@ -203,6 +203,9 @@ carrying 560
 arch carrot
 nrof 7
 end
+arch bolt_silk
+name_pl bolts of silk
+end
 end
 arch grass_only
 x 2