message: Fix incorrect reference DOI number/link for GDR
  This fix fixes the incorrect reference DOI number/link for GDR:
  `https://doi.org/10.1145/3123878.3123907` -> `https://doi.org/10.1145/3123878.3131975`
diff: @@ -119,4 +119,4 @@ In the original design (as in the reference), tensor buffers are only registered
  Reference
  ===
  -Bairen Yi, Jiacheng Xia, Li Chen, and Kai Chen. 2017. Towards Zero Copy Dataflows using RDMA. In Proceedings of SIGCOMM Posters and Demos'17, Los Angeles, CA, USA, August 22-24, 2017, 3 pages. https://doi.org/10.1145/3123878.3123907
  +Bairen Yi, Jiacheng Xia, Li Chen, and Kai Chen. 2017. Towards Zero Copy Dataflows using RDMA. In Proceedings of SIGCOMM Posters and Demos'17, Los Angeles, CA, USA, August 22-24, 2017, 3 pages. https://doi.org/10.1145/3123878.3131975
  