diff --git a/README.md b/README.md
index ab6a269..e3fee44 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@ Start with arguments:
 
 --room-debug # shows information above each room what types of puzzles it has, and if player entered the room or not...
 
+--webrtc # this selects webrtc network mode directly. if combined with --join it will try to find room and join that.
+
 ## Features
 
 ### Multiplayer Support