Update config.yml

config.yml

@@ -217,7 +217,7 @@ matchmaking:
 # opponent_min_rating: 600         # Opponents rating should be above this value (600 is the minimum rating in lichess).
 # opponent_max_rating: 4000        # Opponents rating should be below this value (4000 is the maximum rating in lichess).
   opponent_rating_difference: 300  # The maximum difference in rating between the bot's rating and opponent's rating.
-  rating_preference: "none"        # One of "none", "high", "low".
+  rating_preference: "high"        # One of "none", "high", "low".
   challenge_mode: "random"         # Set it to the mode in which challenges are sent. Possible options are 'casual', 'rated' and 'random'.
 # block_list:                      # The list of bots that will not be challenged
 #   - user1