mistake fix

Author: JPryce-Aklundh

modules/ROOT/pages/clauses/merge.adoc

@@ -740,7 +740,7 @@ RETURN greta.name AS name, labels(greta) AS labels, type(rel) AS relType, collec
 [[dynamic-merge-caveats]]
 === Performance caveats
 
-`MATCH` queries that use dynamic values may not perform as well as those with static values.
+`MERGE` queries that use dynamic values may not perform as well as those with static values.
 Neo4j is actively working to improve the performance of these queries.
 The table below outlines performance caveats for specific Neo4j versions.