Add messageoftheday plugin checker

Change-Id: I072d09365b394ac6e105eeae5f56fef753b9ae0d
diff --git a/checkers.yaml b/checkers.yaml
index ad1a5e5..c06ace1 100644
--- a/checkers.yaml
+++ b/checkers.yaml
@@ -151,6 +151,11 @@
     name: "Zuul Check Pipeline"
     description: "Run Zuul jobs on new patchsets"
 
+  - uuid: "zuul-check:plugins_messageoftheday"
+    repository: "plugins/messageoftheday"
+    name: "Zuul Check Pipeline"
+    description: "Run Zuul jobs on new patchsets"
+
   - uuid: "zuul-check:plugins_oauth"
     repository: "plugins/oauth"
     name: "Zuul Check Pipeline"
diff --git a/zuul/main.yaml b/zuul/main.yaml
index fc81206..07ac9ff 100644
--- a/zuul/main.yaml
+++ b/zuul/main.yaml
@@ -43,6 +43,7 @@
           - plugins/javamelody
           - plugins/lfs
           - plugins/log-level
+          - plugins/messageoftheday
           - plugins/oauth
           - plugins/project-group-structure
           - plugins/reviewers