Add replication note for cw12b13
@@ -38,3 +38,7 @@ ${eval_cmds}
With the above commands, you should be able to replicate the following results:
${effectiveness}
+
+## Replication Log
+
+* Results replicated by [@matthew-z](https://github.com/matthew-z) on 2019-04-14 (commit [`abaa4c8`](https://github.com/castorini/Anserini/commit/abaa4c8e7cb50e8e4a3677377716f609b7859538))
\ No newline at end of file
