More docs on NPM package readme page.

Author: elizarov

js/kotlinx-coroutines-core-js/npm/README.md

@@ -3,6 +3,14 @@
 Library support for Kotlin coroutines in
 [Kotlin/JS](https://kotlinlang.org/docs/reference/js-overview.html).
 
+```kotlin
+launch {
+    delay(1000)
+    println("Hello from Kotlin Coroutines!")
+}
+```
+
 ## Documentation 
 
+* [Guide to kotlinx.coroutines by example on JVM](https://github.com/Kotlin/kotlinx.coroutines/blob/master/coroutines-guide.md) (**read it first**)
 * [Full kotlinx.coroutines API reference](http://kotlin.github.io/kotlinx.coroutines)