Fix typo in documentation RevUpdatedEvents -> RefUpdatedEvents

Change-Id: I75ab81ca35748f1492a54f434a5f8719d3d73c9d
diff --git a/src/main/resources/Documentation/config-rulebase-common.md b/src/main/resources/Documentation/config-rulebase-common.md
index d232e57..1220751 100644
--- a/src/main/resources/Documentation/config-rulebase-common.md
+++ b/src/main/resources/Documentation/config-rulebase-common.md
@@ -281,7 +281,7 @@
 `added@<Association-Value>`
 :	(only for events that allow to determine the patch set number.
 	So for example, this `association` property is not set for
-	RevUpdatedEvents)
+	RefUpdatedEvents)
 
 issue id occurs at `<Association-Value>` in the most recent
 patch set of the change, and either the event is for patch set