Observability documentation includes.

Closes #1222

Author: mp911de

spring-data-cassandra-distribution/pom.xml

@@ -43,7 +43,7 @@
 				<executions>
 					<execution>
 						<id>generate-metrics-metadata</id>
-						<phase>prepare-package</phase>
+						<phase>generate-resources</phase>
 						<goals>
 							<goal>java</goal>
 						</goals>
@@ -53,7 +53,7 @@
 					</execution>
 					<execution>
 						<id>generate-tracing-metadata</id>
-						<phase>prepare-package</phase>
+						<phase>generate-resources</phase>
 						<goals>
 							<goal>java</goal>
 						</goals>

src/main/asciidoc/reference/observability.adoc

@@ -1,7 +1,7 @@
-:root-target: ../../../../target/
+:root-target: ../../../../../target/
 
 [[observability]]
-== Observability metadata
+= Observability metadata
 
 include::{root-target}_metrics.adoc[]