update

rollout/rc-history.yaml

@@ -226,6 +226,7 @@ rollout:
     - 20-03-06 17:53:40:recombine-199
     - 20-01-07 13:40:11:recombine-199
     app-engine:
+    - 20-05-26 18:18:19:rc-75-8f8beecbaa-pangweichao
     - 20-05-26 18:08:59:rc-74-5818d708db-pangweichao
     - 20-05-26 17:13:39:rc-73-6338551bbf-pangweichao
     - 20-05-26 17:07:09:rc-72-d793c4ce22-pangweichao
@@ -235,7 +236,6 @@ rollout:
     - 20-05-11 21:25:27:master-61-03c0447144-pangweichao
     - 20-05-08 16:03:13:class-remind-59-093906dec1-pangweichao
     - 20-05-07 17:36:47:class-remind-56-9b42da711b-pangweichao
-    - 20-05-07 11:50:54:class-remind-55-bc52bd9443-pangweichao
     app-exercisebook:
     - 20-05-18 12:23:07:horn-501-d85b19c2d9-jiabin
     - 20-05-13 15:01:52:homework-4-493-f711afdf2f-pangweichao