Update readme

Author: qwwdfsad

README.md

@@ -20,10 +20,13 @@ GlobalScope.launch {
 
 * [common](common/README.md) — common coroutines across all backends:
   * `launch` and `async` coroutine builders;
-  * `Job` and `Deferred` light-weight future with cancellation support;
+  * `Job` `Deferred` light-weight future with cancellation support;
+  *` Dispatchers.Main` for UI dispatcher for Android, Swing and JavaFx;
   * `delay` and `yield` top-level suspending functions;
   * `Channel` and `Mutex` communication and synchronization primitives;
   * `produce` and `actor` coroutine builders;
+  * `coroutineScope` and `supervisorScope` scope builders;
+  * `SupervisorJob` for supervision of coroutines hierarchies;
   * `select` expression support and more.
 * [core](core/README.md) — Kotlin/JVM implementation of common coroutines with additional features:
   * `Dispatchers.IO` dispatcher for blocking coroutines.
@@ -39,8 +42,8 @@ GlobalScope.launch {
 ## Documentation
 
 * Presentations and videos:
-   * [Introduction to Coroutines](https://www.youtube.com/watch?v=_hfBv0a09Jc) (Roman Elizarov at KotlinConf 2017, [slides](https://www.slideshare.net/elizarov/introduction-to-coroutines-kotlinconf-2017))
-   * [Deep dive into Coroutines](https://www.youtube.com/watch?v=YrrUCSi72E8) (Roman Elizarov at KotlinConf 2017, [slides](https://www.slideshare.net/elizarov/deep-dive-into-coroutines-on-jvm-kotlinconf-2017))
+  * [Introduction to Coroutines](https://www.youtube.com/watch?v=_hfBv0a09Jc) (Roman Elizarov at KotlinConf 2017, [slides](https://www.slideshare.net/elizarov/introduction-to-coroutines-kotlinconf-2017))
+  * [Deep dive into Coroutines](https://www.youtube.com/watch?v=YrrUCSi72E8) (Roman Elizarov at KotlinConf 2017, [slides](https://www.slideshare.net/elizarov/deep-dive-into-coroutines-on-jvm-kotlinconf-2017))
 * Guides and manuals: 
   * [Guide to kotlinx.coroutines by example](docs/coroutines-guide.md) (**read it first**)
   * [Guide to UI programming with coroutines](ui/coroutines-guide-ui.md)

ui/README.md

@@ -1,6 +1,7 @@
 # Coroutines for UI
 
 This directory contains modules for coroutine programming with various single-threaded UI libraries.
+After adding dependency to the UI library, corresponding UI dispatcher will be available via `Dispatchers.Main`.
 Module name below corresponds to the artifact name in Maven/Gradle.
 
 ## Modules

ui/coroutines-guide-ui.md

@@ -71,6 +71,10 @@ different UI application libraries:
 * [kotlinx-coroutines-javafx](kotlinx-coroutines-javafx) -- `Dispatchers.JavaFx` context for JavaFX UI applications.
 * [kotlinx-coroutines-swing](kotlinx-coroutines-swing) -- `Dispatchers.Swing` context for Swing UI applications.
 
+Also, UI dispatcher is available via `Dispatchers.Main` from `kotlinx-coroutines-core` and corresponding 
+implementation (Android, JavaFx or Swing) is discovered by [`ServiceLoader`](https://docs.oracle.com/javase/8/docs/api/java/util/ServiceLoader.html) API.
+For example, if you are writing JavaFx application, you can use either `Dispatchers.Main` or `Dispachers.JavaFx` extension, it will be the same object.
+
 This guide covers all UI libraries simultaneously, because each of these modules consists of just one
 object definition that is a couple of pages long. You can use any of them as an example to write the corresponding
 context object for your favourite UI library, even if it is not included out of the box here.

ui/kotlinx-coroutines-javafx/README.md

@@ -1,10 +1,10 @@
 # Module kotlinx-coroutines-javafx
 
-Provides `Dispatchers.JavaFx` context for JavaFX UI applications.
+Provides `Dispatchers.JavaFx` context and `Dispatchers.Main` implementation for JavaFX UI applications.
 
 Read [Guide to UI programming with coroutines](https://github.com/Kotlin/kotlinx.coroutines/blob/master/ui/coroutines-guide-ui.md)
 for tutorial on this module.
 
 # Package kotlinx.coroutines.experimental.javafx
 
-Provides `Dispatchers.JavaFx` context for JavaFX UI applications.
+Provides `Dispatchers.JavaFx` context and `Dispatchers.Main` implementation for JavaFX UI applications.

ui/kotlinx-coroutines-swing/README.md

@@ -1,10 +1,10 @@
 # Module kotlinx-coroutines-swing
 
-Provides `Dispatchers.Swing` context for Swing UI applications.
+Provides `Dispatchers.Swing` context and `Dispatchers.Main` implementation for Swing UI applications.
 
 Read [Guide to UI programming with coroutines](https://github.com/Kotlin/kotlinx.coroutines/blob/master/ui/coroutines-guide-ui.md)
 for tutorial on this module.
 
 # Package kotlinx.coroutines.experimental.swing
 
-Provides `Dispatchers.Swing` context for Swing UI applications.
+Provides `Dispatchers.Swing` context and `Dispatchers.Main` implementation  for Swing UI applications.