Fix broken link to Kafka example in 'getting started' section
Minor commit which amends the link to the Kafka example in the
'getting started' section, as it's likely newcomers would stumble on
this page.
@@ -42,4 +42,4 @@ The username is your GitHub user name and the credential is your password. If yo
## Deploy your first Application
-Follow the instructions in the [Apache Kafka example](/docs/examples/apache-kafka.md) to deploy a Kafka cluster along with its dependency Zookeeper.
+Follow the instructions in the [Apache Kafka example](/docs/examples/apache-kafka/) to deploy a Kafka cluster along with its dependency Zookeeper.
