docs: add link to blog series

Author: metacosm

docs/modules/ROOT/pages/index.adoc

@@ -4,6 +4,9 @@ include::./includes/attributes.adoc[]
 
 This extension integrates the https://javaoperatorsdk.io[Java Operator SDK] project (JOSDK) with Quarkus, making it even easier to use both.
 
+For an introduction to this project, please read the https://developers.redhat.com/articles/2022/02/15/write-kubernetes-java-java-operator-sdk[blog series] that we wrote on how to write operators in Java with Quarkus.
+Please also refer to the https://javaoperatorsdk.io/docs/getting-started[JOSDK documentation] for more details.
+
 == Features
 
 - Automatically generates a main class, so that the only thing that's required is to write `Reconciler` implementation(s)