Update readme with ScalaJS sections

README.md

@@ -34,6 +34,15 @@ libraryDependencies ++= Seq(
 )
 ```
 
+For enumeratum with [uPickle](http://lihaoyi.github.io/upickle/):
+
+```scala
+libraryDependencies ++= Seq(
+    "com.beachape" %% "enumeratum" % "1.3.3",
+    "com.beachape" %% "enumeratum-upickle" % "1.3.3"
+)
+```
+
 For enumeratum with Play JSON:
 ```scala
 libraryDependencies ++= Seq(
@@ -50,6 +59,25 @@ libraryDependencies ++= Seq(
 )
 ```
 
+### ScalaJs
+
+There is support for ScalaJs, though only for the core lib and the UPickle helper lib.
+
+```scala
+libraryDependencies ++= Seq(
+    "com.beachape" %%% "enumeratum" % "1.3.3"
+)
+```
+
+To use with uPickle:
+
+```scala
+libraryDependencies ++= Seq(
+    "com.beachape" %%% "enumeratum" % "1.3.3",
+    "com.beachape" %%% "enumeratum-upickle" % "1.3.3"
+)
+```
+
 ## How-to + example
 
 Using Enumeratum is simple. Simply declare your own sealed trait or class `A`, and implement it as case objects inside