docs: change relative URLs to absolute URLs to fix broken links. (#260)

This PR was generated using Autosynth. 🌈

Synth log will be available here:
https://source.cloud.google.com/results/invocations/f21629c7-068a-4913-907f-ae9811f1de1a/targets

- [ ] To automatically regenerate this PR, check this box.

PiperOrigin-RevId: 324941614
Source-Link: googleapis/googleapis@6fd0756

dataproc/snippets/pom.xml

@@ -42,7 +42,7 @@
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-dataproc</artifactId>
     </dependency>
-    <!-- BEGIN_EXCLUDE -->
+    <!-- [START_EXCLUDE] -->
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
@@ -59,7 +59,7 @@
       <version>1.0.1</version>
       <scope>test</scope>
     </dependency>
-    <!-- END_EXCLUDE -->
+    <!-- [END_EXCLUDE] -->
   </dependencies>
   <!-- [END dataproc_install_with_bom] -->
 </project>