Adds arXiv link to the ROCCET paper draft.

README.md

@@ -12,6 +12,8 @@ CUBIC's window growth function and adds, based on RTT
 and ACK rate, congestion events.
 
 NOTE: A paper for TCP ROCCET is currently under review.
+Paper draft:
+            https://arxiv.org/abs/2510.25281
  
 The oldest Linux kernel version we tested with ROCCET is 6.1.