Fix incorrect probabilities in holdout7.efg

Author: tturocy

contrib/games/holdout7.efg

@@ -2,7 +2,7 @@ EFG 2 R "McKelvey-Palfrey (JET 77), 7 stage version of holdout game" { "Player 1
 ""
 
 c "ROOT" 1 "(0,1)" { "1 LO" 3/10 "1 HI" 7/10 } 0
-c "" 2 "(0,2)" { "2 LO" 18/1000 "2 HI" 82/100 } 0
+c "" 2 "(0,2)" { "2 LO" 18/100 "2 HI" 82/100 } 0
 p "" 1 1 "(1,1)" { "G" "H" } 0
 p "" 2 1 "(2,1)" { "G" "H" } 0
 t "" 1 "Outcome 1" { 1/2, 1/2 }
@@ -92,7 +92,7 @@ t "" 0
 t "" 0
 t "" 0
 t "" 0
-c "" 22 "(0,22)" { "2 LO" 18/1000 "2 HI" 82/100 } 0
+c "" 22 "(0,22)" { "2 LO" 18/100 "2 HI" 82/100 } 0
 c "" 23 "(0,23)" { "H" 1 } 0
 p "" 2 1 "(2,1)" { "G" "H" } 0
 t "" 7 "Outcome 11" { 1, 1/2 }