improve preamble of Generator.adoc

Author: gavinking

documentation/src/main/asciidoc/introduction/Generator.adoc

@@ -130,9 +130,14 @@ The Metamodel Generator is not currently able to generate finder methods and que
 
 We're going to meet three different kinds of generated method:
 
-- a _named query method_ has its signature and implementation generated directly from a `@NamedQuery` annotation,
-- a _query method_ has a signature that's explicitly declared, and a generated implementation which executes a HQL or SQL query specified via a `@HQL` or `@SQL` annotation, and
-- a _finder method_ annotated `@Find` has a signature that's explicitly declared, and a generated implementation inferred from the parameter list.
+- a _<<generated-named-queries,named query method>>_ has its signature and implementation generated directly from a `@NamedQuery` annotation,
+- a _<<generated-query-methods,query method>>_ has a signature that's explicitly declared, and a generated implementation which executes a HQL or SQL query specified via a `@HQL` or `@SQL` annotation, and
+- a _<<generated-finder-methods,finder method>>_ annotated `@Find` has a signature that's explicitly declared, and a generated implementation inferred from the parameter list.
+
+We're also going to see two ways that these methods can be called:
+
+- as static methods of a generated abstract class, or
+- as <<static-or-instance,instance methods of an interface>> with a generated implementation which may even be <<cdi-bean-injection,injected>>.
 
 To whet our appetites, let's see how this works for a `@NamedQuery`.
 
@@ -355,6 +360,7 @@ interface Queries {
 
 What if we would like to inject a `Queries` object instead of calling its constructor directly?
 
+[[cdi-bean-injection]]
 [%unbreakable]
 [TIP]
 ====