update README

Author: yexin

verl/checkpoint_engine/README.md

@@ -19,6 +19,7 @@ Checkpoint Engine is an unified abstract layer to synchronize weights between va
 |hccl|HCCL|all_gather+broadcast|Ascend NPU & HCCL| High|Low: rebuild hccl group|Off-policy training<br>- Trainer/rollout disaggregated<br>- Fixed clusters
 |nixl|NIXL|all_gather+ring p2p|Various transport backends (D2D, H2H, H2D, etc)<br>- UCX<br>- UCCL<br>- Mooncacke|Medium/High|High: dynamic adjust ring topology|Off-policy training<br>- Trainer/rollout disaggregated<br>- Elastic rollout<br>- Rollout fault tolerance<br>- Heterogeneous hardware rollout
 |kimi_ckpt_engine|MOONCAKE+NCCL/HCCL|p2p+broadcast|NVIDIA/Ascend|High|Low: rebuild communication group|Off-policy training<br>- Trainer/rollout disaggregated<br>- Save checkpoint each time
+|mooncake|Mooncake Transfer Engine|all_gather+ring p2p|NVIDIA/Ascend|High|High: dynamic adjust ring topology|Off-policy training<br>- Trainer/rollout disaggregated<br>- Fixed clusters
 
 ##### kimi_ckpt_engine detail:
 
@@ -49,3 +50,4 @@ pytest tests/checkpoint_engine/test_special_server_adapter.py
 |4*8 H100, ConnectX-7 400 Gbps (InfiniBand)| NIXL | ~7 | 8.25|
 |2*16 Ascend 910C, inner suppernode| HCCL | ~11 | 5.3|
 |2*16 Ascend 910C, inner suppernode| kimi_ckpt_engine | offload: 7 update: 3.5 | 16.5|
+|2*8 H100, ConnectX-7 400 Gbps (InfiniBand)| mooncake | 5.93 | 9.44|