Fix dead links

Fix links to confirm to the standard [used elsewhere](https://github.com/hazelcast-guides/standard-deviation-parallel-processing/blob/bf5eb4fd0f6e3214cd3a9e3d4d9458c104cfff97/docs/modules/ROOT/pages/compute-standard-deviation.adoc?plain=1#L187).

Author: JackPGreen

docs/modules/ROOT/pages/spring-boot-client.adoc

@@ -82,7 +82,7 @@ If the Hazelcast client is on the classpath and a suitable configuration is foun
 include::spring-boot-sample:example$pom.xml[tag=client]
 ----
 
-link:{github-directory}/pom.xml[View source]
+link:{github-directory}/tree/master/pom.xml[View source]
 ====
 
 .`HzCloudDemoApplication.java`
@@ -95,7 +95,7 @@ Spring Boot first attempts to create a Hazelcast client by checking the presence
 include::spring-boot-sample:example$src/main/java/sample/com/hazelcast/demo/cloud/HzCloudDemoApplication.java[tag=class]
 ----
 
-link:{github-directory}/src/main/java/sample/com/hazelcast/demo/cloud/HzCloudDemoApplication.java[View source]
+link:{github-directory}/tree/master/src/main/java/sample/com/hazelcast/demo/cloud/HzCloudDemoApplication.java[View source]
 ====
 
 .`MapService.java`
@@ -108,7 +108,7 @@ When the `com.hazelcast.client.config.ClientConfig` bean is present, a `Hazelcas
 include::spring-boot-sample:example$src/main/java/sample/com/hazelcast/demo/cloud/MapService.java[tag=class]
 ----
 
-link:{github-directory}/src/main/java/sample/com/hazelcast/demo/cloud/MapService.java[View source]
+link:{github-directory}/tree/master/src/main/java/sample/com/hazelcast/demo/cloud/MapService.java[View source]
 ====
 
 == Step 2. Connect the Client
@@ -154,4 +154,4 @@ Use this boilerplate application as a foundation to start building your own appl
 
 See the xref:cloud:ROOT:overview.adoc[Hazelcast {hazelcast-cloud} documentation] to continue learning or try another tutorial.
 
-See the link:{url-spring-hazelcast}[Spring Boot] documentation for more about using Hazelcast with Spring.
+See the link:{url-spring-hazelcast}[Spring Boot] documentation for more about using Hazelcast with Spring.