Update README.md

README.md

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 # dynamodb-spring-boot
 
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+
+
+### dynamodb-spring-boot Example
+
+1. application.properties
+```
+spring.data.dynamodb.access-key=<your access-key>
+spring.data.dynamodb.secret-key=<your secret-key>
+```
+
+2. PersonRepository 
+```java
+@EnableScan
+public interface PersonRepository extends DynamoDBRepository<Person, String> {
+}
+```
+
+3. Person
+
+```java
+@DynamoDBTable(tableName = "persons")
+public class Person {
+
+    @DynamoDBHashKey
+    @DynamoDBAutoGeneratedKey
+    private String id;
+    private String name;
+
+    public Person() {
+
+    }
+    // getter setter etc
+}
+```
+
+4.  Sample
+```java
+@Bean
+CommandLineRunner commandLineRunner(PersonRepository personRepository) {
+    return args -> {
+        personRepository.save(Arrays.asList(
+                new Person("kevin"),
+                new Person("josh long"))
+        );
+        personRepository.findAll()
+                .forEach(System.out::println);
+    };
+}
+```
+
+### dynamodb-spring-boot-test Example
+
+TODO