Update README.md

Author: vsilaev

README.md

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-[![Maven Central](https://img.shields.io/maven-central/v/net.tascalate.javaflow/net.tascalate.javaflow.extras.svg)](https://search.maven.org/artifact/net.tascalate.javaflow/net.tascalate.javaflow.extras/2.3.2/jar) [![GitHub release](https://img.shields.io/github/release/vsilaev/tascalate-javaflow-extras.svg)](https://github.com/vsilaev/tascalate-javaflow-extras/releases/tag/2.3.2) [![license](https://img.shields.io/github/license/vsilaev/tascalate-javaflow-extras.svg)](https://github.com/vsilaev/tascalate-javaflow-extras/blob/master/LICENSE)
+[![Maven Central](https://img.shields.io/maven-central/v/net.tascalate.javaflow/net.tascalate.javaflow.extras.svg)](https://search.maven.org/artifact/net.tascalate.javaflow/net.tascalate.javaflow.extras/2.4.0/jar) [![GitHub release](https://img.shields.io/github/release/vsilaev/tascalate-javaflow-extras.svg)](https://github.com/vsilaev/tascalate-javaflow-extras/releases/tag/2.4.0) [![license](https://img.shields.io/github/license/vsilaev/tascalate-javaflow-extras.svg)](https://github.com/vsilaev/tascalate-javaflow-extras/blob/master/LICENSE)
 
 # Tascalate JavaFlow Extras
 Continuations / CoRoutines for Java 8+. This library is an add-on to [Tascalate Javaflow](https://github.com/vsilaev/tascalate-javaflow) continuations library. It provides suspendable version of java.util.Stream, java.util.Iterator, java.util.function.*  and helper classes to work with continuations.