HHH-16598 - Add Introduction to Hibernate 6 to the website

https://hibernate.atlassian.net/browse/HHH-16598

documentation/src/main/asciidoc/querylanguage/Credits.adoc

@@ -0,0 +1,9 @@
+[[credits]]
+== Credits
+
+The full list of contributors to Hibernate ORM can be found on the
+https://github.com/hibernate/hibernate-orm/graphs/contributors[GitHub repository].
+
+The following contributors were involved in this documentation:
+
+* Gavin King

documentation/src/main/asciidoc/querylanguage/Expressions.adoc

@@ -1173,7 +1173,7 @@ For _logical_ operations on <<conditional-expressions,predicates>>, see <<logica
 | `is false` | `is not false` | Binary | `true` if the value to the left is `false`, or `false` otherwise
 |===
 
-[[null-predicate-example]]
+[[boolean-predicate-example]]
 [source, hql]
 ----
 from Book where discontinued is not true

documentation/src/main/asciidoc/querylanguage/Hibernate_Query_Language.adoc

@@ -15,7 +15,6 @@
 :extrasdir: extras
 
 = A guide to Hibernate Query Language 6
-Gavin King and the Hibernate team
 :title-logo-image: image:../../style/asciidoctor/images/org/hibernate/logo.png[]
 :toc:
 :toclevels: 3
@@ -42,3 +41,7 @@ include::From.adoc[]
 
 include::Relational.adoc[]
 
+<<<
+
+include::Credits.adoc[]
+

release/release.gradle

@@ -353,6 +353,7 @@ task assembleDocumentation {
     dependsOn tasks.stageTopicalGuide
     dependsOn tasks.stageQuickstart
     dependsOn tasks.stageIntroduction
+    dependsOn tasks.stageQL
     dependsOn tasks.stageUserGuide
     dependsOn tasks.stageMigrationGuide
     dependsOn tasks.stageOrmReports