version update

Author: webfirmframework

README.md

@@ -1,6 +1,6 @@
 [![Build Status](https://api.travis-ci.org/webfirmframework/wff.svg?branch=master)](https://travis-ci.org/webfirmframework/wff)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/410601e16dc54b0a973c03845ad790c2)](https://www.codacy.com/app/webfirm-framework/wff?utm_source=github.com&utm_medium=referral&utm_content=webfirmframework/wff&utm_campaign=Badge_Grade)
-[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.webfirmframework/wffweb/badge.svg)](http://search.maven.org/#artifactdetails%7Ccom.webfirmframework%7Cwffweb%7C2.1.5%7Cjar)
+[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.webfirmframework/wffweb/badge.svg)](http://search.maven.org/#artifactdetails%7Ccom.webfirmframework%7Cwffweb%7C2.1.6%7Cjar)
 [![javadoc](https://img.shields.io/:wffweb-javadoc-blue.svg)](https://webfirmframework.github.io/wffweb/wffweb-javadoc)