Create README.md

Author: koush

AndroidAsync-Kotlin/README.md

@@ -0,0 +1,11 @@
+# Kotlin Coroutines
+
+Adds coroutines support to AndroidAsync and Ion.
+
+Since AndroidAsync and Ion operations all returned futures, you can simply call await() on them within a Kotlin suspend function.
+
+```kotlin
+val data = Ion.with(context).load("https://google.com/robots.txt").asString().await()
+```
+
+That's it!