DATAJPA-862 - Fixed Query parameter index in @Query example.

Original pull request: #165.

src/main/asciidoc/jpa.adoc

@@ -273,7 +273,7 @@ Native queriesThe `@Query` annotation allows to execute native queries by settin
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 public interface UserRepository extends JpaRepository<User, Long> {
 
-  @Query(value = "SELECT * FROM USERS WHERE EMAIL_ADDRESS = ?0", nativeQuery = true)
+  @Query(value = "SELECT * FROM USERS WHERE EMAIL_ADDRESS = ?1", nativeQuery = true)
   User findByEmailAddress(String emailAddress);
 }
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