Sync documentation of main branch

Author: actions-user

_versions/main/guides/config-reference.adoc

@@ -367,7 +367,7 @@ Setting `quarkus.profile`  to `staging` will activate the `staging` profile.
 
 [NOTE]
 ====
-The `io.smallrye.config.SmallRyeConfig#getProfiles` API provides a way to retrieve the active profiles programmatically.
+The `io.quarkus.runtime.configuration.ConfigUtils.getProfiles` API provides a way to retrieve the active profiles programmatically.
 ====
 
 === Profile-aware files

_versions/main/guides/hibernate-orm.adoc

@@ -486,6 +486,13 @@ EntityManager entityManager;
 ----
 <1> Here again, we use the same `@io.quarkus.hibernate.orm.PersistenceUnit` annotation.
 
+[NOTE]
+====
+The injected `EntityManager` or `Session` instance is a proxy that requires an active transaction for interaction.
+
+By default it is also possible to use it for read-only operations without a transaction when in a request scope, but this can be disabled by setting `quarkus.hibernate-orm.request-scoped.enabled` to `false`.
+====
+
 You can inject the `EntityManagerFactory` of a named persistence unit using the exact same mechanism:
 
 [source,java]