FIX #699 add recipe for scalajs packaging

Author: muuki88

src/sphinx/recipes/index.rst

@@ -10,10 +10,11 @@ This section provides recipes for common configurations. If you can't find what
 .. toctree::
    :maxdepth: 1
 
-   custom.rst
-   longclasspath.rst
-   play.rst
-   deployment.rst
+   custom
+   longclasspath
+   play
+   deployment
+   scalajs
 
 
 

src/sphinx/recipes/scalajs.rst

@@ -0,0 +1,19 @@
+.. _scalajs:
+
+Scala JS packaging
+==================
+
+.. warning:: This is no official scala js doc, but created from the native-packager community.
+    See `issue-699`_.
+
+Package webjars and scalajs resources
+-------------------------------------
+
+In order to package all assets correctly, add this to your project
+
+.. code-block:: scala
+
+    (managedClasspath in Runtime) += (packageBin in previewJVM in Assets).value
+
+
+.. _issue-699: https://github.com/sbt/sbt-native-packager/issues/699