Fix a typo in the Hibernate Reactive with Panache guide

Author: TwoFX

docs/src/main/asciidoc/hibernate-reactive-panache.adoc

@@ -701,7 +701,7 @@ public class RaceWeight {
 }
 
 // Only the race and the average weight will be loaded
-PanacheQuery<RaceWeight> query = Person.find("select d.race, AVG(d.weight) from Dog d group by d.race).project(RaceWeight.class);
+PanacheQuery<RaceWeight> query = Person.find("select d.race, AVG(d.weight) from Dog d group by d.race").project(RaceWeight.class);
 ----
 <1> Hibernate Reactive will use this constructor. When the query has a select clause, it is possible to have multiple constructors.