Fix formatting

Author: Raghu Angadi

contrib/kafka/README.md

@@ -4,26 +4,28 @@ KafkaIO provides unbounded sources and sinks for [Kafka](https://www.firebase.co
 topics. Kafka version 0.9 and above are supported.
 
 ## Basic Usage
- * Read from a topic with 8 byte long keys and string values:
-   ```java
-     PCollection<KV<Long, String>> kafkaRecords =
-       pipeline
-         .applY(KafkaIO.read()
-           .withBootstrapServers("broker_1:9092,broker_2:9092")
-           .withTopics(ImmutableList.of("topic_a"))
-           .withKeyCoder(BigEndianLongCoder.of())
-           .withValueCoder(StringUtf8Coder.of())
-           .withoutMetadata()
-         );
-    ```
- * Write the same PCollection to a Kafka topic:
-   ```java
-     kafkaRecords.apply(KafkaIO.write()
+
+* Read from a topic with 8 byte long keys and string values:
+```java
+ PCollection<KV<Long, String>> kafkaRecords =
+   pipeline
+     .applY(KafkaIO.read()
        .withBootstrapServers("broker_1:9092,broker_2:9092")
-       .withTopic("results")
+       .withTopics(ImmutableList.of("topic_a"))
        .withKeyCoder(BigEndianLongCoder.of())
        .withValueCoder(StringUtf8Coder.of())
-   ```
+       .withoutMetadata()
+     );
+```
+
+* Write the same PCollection to a Kafka topic:
+```java
+ kafkaRecords.apply(KafkaIO.write()
+   .withBootstrapServers("broker_1:9092,broker_2:9092")
+   .withTopic("results")
+   .withKeyCoder(BigEndianLongCoder.of())
+   .withValueCoder(StringUtf8Coder.of())
+```
 
 Please see JavaDoc for KafkaIO in
 [KafkaIO.java](https://github.com/GoogleCloudPlatform/DataflowJavaSDK/blob/master/contrib/kafka/src/main/java/com/google/cloud/dataflow/contrib/kafka/KafkaIO.java#L100)