query fix

Author: JPryce-Aklundh

modules/ROOT/pages/clauses/filter.adoc

@@ -168,7 +168,7 @@ The same is not true if `WHERE` is exchanged for `FILTER`:
 UNWIND [32,37,40] AS ageValue
 OPTIONAL MATCH (p:Person) 
 FILTER p.age = ageValue
-RETURN p.name
+RETURN p.name AS name, p.age AS age
 ----
 
 .Result