make sure the example also works on 2.12

Author: francisdb

examples/src/main/scala/Example.scala

@@ -11,6 +11,7 @@ import play.api.libs.ws.ahc.StandaloneAhcWSClient
 import scala.concurrent.duration._
 import scala.concurrent.ExecutionContext.Implicits.global
 import scala.util.{Failure, Success, Try}
+import scala.collection.immutable.Seq
 
 object Example extends App {