Fix the DurationConverters import in README

Author: filosganga

README.md

@@ -268,15 +268,15 @@ Example of conversions from the Java type ways:
 
 ```scala
 import scala.concurrent.duration._
-import scala.compat.java8.DurationConverters
+import scala.compat.java8.DurationConverters._
 
 val javaDuration: java.time.Duration = 5.seconds.toJava
 val finiteDuration: FiniteDuration = javaDuration.toScala
 ```
 
 From Java:
 ```java
-import scala.compat.java8.DurationConverters;
+import static scala.compat.java8.DurationConverters.*;
 import scala.concurrent.duration.FiniteDuration;
 
 DurationConverters.toScala(Duration.of(5, ChronoUnit.SECONDS));