diff --git a/README.md b/README.md
index 24c0fb4..23c7115 100644
--- a/README.md
+++ b/README.md
@@ -21,34 +21,31 @@ libraryDependencies += "io.github.jonas" %% "circe-config" % "0.1.1"
 ## Example
 
 ```scala
-import com.typesafe.config.ConfigFactory
-import io.circe.generic.auto._
-import io.github.jonas.circe.config.syntax._
-
-case class ServerSettings(host: String, port: Int, ssl: Option[String])
-case class HttpSettings(server: ServerSettings, version: Double)
-case class AppSettings(http: HttpSettings)
-
-val config = ConfigFactory.parseString("""
-  http {
-    version = 1.1
-    server {
-      host = localhost
-      port = 8080
-    }
-  }
-""")
-
-val serverSettings = config.as[ServerSettings]("http.server")
-// => serverSettings: Either[io.circe.Error,ServerSettings] = Right(ServerSettings(localhost,8080,None))
-
-val httpSettings = config.as[ServerSettings]("http")
-// => httpSettings: Either[io.circe.Error,HttpSettings] = Right(HttpSettings(ServerSettings(localhost,8080,None),1.1))
-
-val appSettings = config.as[AppSettings]
-// => appSettings: Either[io.circe.Error,AppSettings] = Right(AppSettings(HttpSettings(ServerSettings(localhost,8080,None),1.1)))
+scala> import com.typesafe.config.{ ConfigFactory, ConfigMemorySize }
+scala> import io.circe.generic.auto._
+scala> import io.github.jonas.circe.config.syntax._
+scala> import scala.concurrent.duration.FiniteDuration
+
+scala> case class ServerSettings(host: String, port: Int, timeout: FiniteDuration, maxUpload: ConfigMemorySize)
+scala> case class HttpSettings(server: ServerSettings, version: Option[Double])
+scala> case class AppSettings(http: HttpSettings)
+
+scala> val config = ConfigFactory.load()
+
+scala> config.as[ServerSettings]("http.server")
+res0: Either[io.circe.Error,ServerSettings] = Right(ServerSettings(localhost,8080,5 seconds,ConfigMemorySize(5242880)))
+
+scala> config.as[HttpSettings]("http")
+res1: Either[io.circe.Error,HttpSettings] = Right(HttpSettings(ServerSettings(localhost,8080,5 seconds,ConfigMemorySize(5242880)),Some(1.1)))
+
+scala> config.as[AppSettings]
+res2: Either[io.circe.Error,AppSettings] = Right(AppSettings(HttpSettings(ServerSettings(localhost,8080,5 seconds,ConfigMemorySize(5242880)),Some(1.1))))
 ```
 
+Based on this [application.conf].
+
+ [application.conf]: https://github.com/jonas/circe-config/tree/master/src/test/resources/application.conf
+
 ## Releasing
 
 To release version `x.y.z` run:
diff --git a/build.sbt b/build.sbt
index c896c40..83f9af3 100644
--- a/build.sbt
+++ b/build.sbt
@@ -59,6 +59,7 @@ libraryDependencies ++= Seq(
 
 autoAPIMappings := true
 doctestTestFramework := DoctestTestFramework.ScalaTest
+doctestMarkdownEnabled := true
 doctestWithDependencies := false
 scalacOptions in (Compile,doc) := Seq(
   "-groups",
diff --git a/src/test/resources/application.conf b/src/test/resources/application.conf
new file mode 100644
index 0000000..af06234
--- /dev/null
+++ b/src/test/resources/application.conf
@@ -0,0 +1,9 @@
+http {
+  version = 1.1
+  server {
+    host = localhost
+    port = 8080
+    timeout = 5 s
+    maxUpload = 5M
+  }
+}