diff --git a/README.md b/README.md
index 1657d03..7c7f4d7 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Example:
     team2 = [Rating.new(22.0, 0.98, 0.8), Rating.new(31.1, 5.33, 0.9)]
 
     # team 1 finished first and team 2 second
-    graph = FactorGraph.new(team1 => 1, team2 => 2)
+    graph = FactorGraph.new([team1, team2], [1, 2])
 
     # update the Ratings
     graph.update_skills