Correct wip-state-changed and private-state-changed documentation

Actual field filled in by plugin is `changerName` not `submitterName`

Change-Id: I1b8e04ecf53326ae81f631fb3e1480670ca151eb
diff --git a/src/main/resources/Documentation/config-rulebase-common.md b/src/main/resources/Documentation/config-rulebase-common.md
index c8ce22c..3c52cfe 100644
--- a/src/main/resources/Documentation/config-rulebase-common.md
+++ b/src/main/resources/Documentation/config-rulebase-common.md
@@ -461,7 +461,7 @@
 `changerEmail`
 :   email address of the user that changed the WIP state
 
-`submitterName`
+`changerName`
 :   name of the user that changed the WIP state
 
 `changerUsername`
@@ -478,7 +478,7 @@
 `changerEmail`
 :   email address of the user that changed the private state
 
-`submitterName`
+`changerName`
 :   name of the user that changed the private state
 
 `changerUsername`