Android O Preview -> Android API level 26

Author: gildor

integration/kotlinx-coroutines-nio/README.md

@@ -1,10 +1,10 @@
 # Module kotlinx-coroutines-nio
 
-Integration with asynchronous IO on JDK7+ (Android O Preview).
+Integration with asynchronous IO on JDK7+ (Android API level 26).
 
 # Package kotlinx.coroutines.experimental.nio
 
-Integration with asynchronous IO on JDK7+ (Android O Preview).
+Integration with asynchronous IO on JDK7+ (Android API level 26).
 
 * `AsynchronousFileChannel` extensions `aLock`, `aRead`, and `aWrite`.
 * `AsynchronousServerSocketChannel` extension `aAccept`.