Fix formatting in documentation.

There was italic formatting in the Cypher examples
where there should have been visible underscores.

Signed-off-by: Gerrit Meier <meistermeier@gmail.com>

src/main/antora/modules/ROOT/pages/appendix/custom-queries.adoc

@@ -353,8 +353,8 @@ Passing an instance of `Movie` to the repository method above, will generate the
 }
 ----
 
-A node is represented by a map. The map will always contain `__id__`  which is the mapped id property.
-Under `__labels__` all labels, static and dynamic, will be available.
+A node is represented by a map. The map will always contain `\\__id__`  which is the mapped id property.
+Under `\\__labels__` all labels, static and dynamic, will be available.
 All properties - and type of relationships - appear in those maps as they would appear in the graph when the entity would
 have been written by SDN.
 Values will have the correct Cypher type and won't need further conversion.

src/main/antora/modules/ROOT/pages/appendix/query-creation.adoc

@@ -83,7 +83,7 @@ This is needed for situations when inheritance is used and you query not for the
 Talking about relationships: If you have defined relationships in your entity, they will get added to the returned map as https://neo4j.com/docs/cypher-manual/4.0/syntax/lists/#cypher-pattern-comprehension[pattern comprehensions].
 The above return part will then look like:
 
-`RETURN n{.first_name, ..., Person_Has_Hobby: [(n)-[:Has]->(n_hobbies:Hobby)|n_hobbies{{neo4jInternalId}: id(n_hobbies), .name, __nodeLabels__: labels(n_hobbies)}]}`
+`RETURN n{.first_name, ..., Person_Has_Hobby: [(n)-[:Has]->(n_hobbies:Hobby)|n_hobbies{{neo4jInternalId}: id(n_hobbies), .name, {neo4jLabels}: labels(n_hobbies)}]}`
 
 The map projection and pattern comprehension used by SDN ensures that only the properties and relationships you have defined are getting queried.