Add a Spring Boot example and integration code.

Change-Id: Ia11dea607c74d9b4cc9a698e9ec92e930bd03f37
diff --git a/core/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/logmanager/package-info.java b/core/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/logmanager/package-info.java
new file mode 100644
index 0000000..87eb71e
--- /dev/null
+++ b/core/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/logmanager/package-info.java
@@ -0,0 +1,18 @@
+/**
+ * Integration with JBoss Log Manager and {@link java.util.logging}.
+ *
+ * <p>Provides classes that can be used to conveniently configure the JBoss Log Manager ({@link
+ * org.jboss.logmanager.LogManager}) as well as {@link java.util.logging} to use the Google Cloud
+ * JSON Logging formatter ({@link eu.mulk.quarkus.googlecloud.jsonlogging.Formatter}).
+ *
+ * <p>{@link eu.mulk.quarkus.googlecloud.jsonlogging.logmanager.DefaultEmbeddedConfigurator} can be
+ * set as a provided implementation of {@link org.jboss.logmanager.EmbeddedConfigurator} via the
+ * standard {@link java.util.ServiceLoader} mechanism.
+ *
+ * <p>{@link eu.mulk.quarkus.googlecloud.jsonlogging.logmanager.DefaultConsoleHandler} can be used
+ * as the target of the {@code handlers} property key in {@link
+ * java.util.logging.LogManager#readConfiguration(java.io.InputStream)}. This is particularly useful
+ * when used in conjunction with frameworks other than Quarkus (such as Spring Boot). See the class
+ * documentation for details.
+ */
+package eu.mulk.quarkus.googlecloud.jsonlogging.logmanager;