A section on additional context elements

Author: elizarov

kotlinx-coroutines-core/README.md

@@ -22,6 +22,13 @@ Coroutine dispatchers implementing [CoroutineDispatcher]:
 | [Executor.asCoroutineDispatcher][java.util.concurrent.Executor.asCoroutineDispatcher] | Extension to convert any executor
 | [Unconfined]                | Does not confine coroutine execution in any way
 
+More context elements:
+
+| **Name**                    | **Description**
+| --------------------------- | ---------------
+| [NonCancellable]            | A non-cancelable job that is always active
+| [CoroutineExceptionHandler] | Handler for uncaught exception
+
 Synchronization primitives for coroutines:
 
 | **Name**   | **Suspending functions**                                    | **Description**
@@ -89,6 +96,8 @@ Select expression to perform multiple suspending operations simultaneously until
 [newFixedThreadPoolContext]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/new-fixed-thread-pool-context.html
 [java.util.concurrent.Executor.asCoroutineDispatcher]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/java.util.concurrent.-executor/as-coroutine-dispatcher.html
 [Unconfined]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/-unconfined/index.html
+[NonCancellable]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/-non-cancellable/index.html
+[CoroutineExceptionHandler]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/-coroutine-exception-handler/index.html
 [delay]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/delay.html
 [yield]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/yield.html
 [run]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/run.html
@@ -98,9 +107,7 @@ Select expression to perform multiple suspending operations simultaneously until
 [Job.isCompleted]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/-job/is-completed.html
 [Deferred.await]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/-deferred/await.html
 [suspendCancellableCoroutine]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/suspend-cancellable-coroutine.html
-[NonCancellable]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/-non-cancellable/index.html
 [newCoroutineContext]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/new-coroutine-context.html
-[CoroutineExceptionHandler]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/-coroutine-exception-handler/index.html
 <!--- INDEX kotlinx.coroutines.experimental.sync -->
 [kotlinx.coroutines.experimental.sync.Mutex]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental.sync/-mutex/index.html
 [kotlinx.coroutines.experimental.sync.Mutex.lock]: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental.sync/-mutex/lock.html