fix shields in README.md

Author: guFalcon

README.md

@@ -1,6 +1,6 @@
 ![GitHub forks](https://img.shields.io/github/forks/UnterrainerInformatik/java-rdb-utils?style=social) ![GitHub stars](https://img.shields.io/github/stars/UnterrainerInformatik/java-rdb-utils?style=social) ![GitHub repo size](https://img.shields.io/github/repo-size/UnterrainerInformatik/java-rdb-utils) [![GitHub issues](https://img.shields.io/github/issues/UnterrainerInformatik/java-rdb-utils)](https://github.com/UnterrainerInformatik/java-rdb-utils/issues)
 
-[![license](https://img.shields.io/github/license/unterrainerinformatik/FiniteStateMachine.svg?maxAge=2592000)](http://unlicense.org) [![Travis-build](https://travis-ci.org/UnterrainerInformatik/java-rdb-utils.svg?branch=master)](https://travis-ci.org/github/UnterrainerInformatik/java-rdb-utils) [![Maven Central](https://img.shields.io/maven-central/v/info.unterrainer.commons/rdb-utils)](https://search.maven.org/artifact/org.webjars.npm/rdb-utils) [![Twitter Follow](https://img.shields.io/twitter/follow/throbax.svg?style=social&label=Follow&maxAge=2592000)](https://twitter.com/throbax)
+[![license](https://img.shields.io/github/license/unterrainerinformatik/FiniteStateMachine.svg?maxAge=2592000)](http://unlicense.org) [![Travis-build](https://travis-ci.org/UnterrainerInformatik/java-rdb-utils.svg?branch=master)](https://travis-ci.org/github/UnterrainerInformatik/java-rdb-utils) [![Maven Central](https://img.shields.io/maven-central/v/info.unterrainer.commons/rdb-utils)](https://search.maven.org/artifact/info.unterrainer.commons/rdb-utils) [![Twitter Follow](https://img.shields.io/twitter/follow/throbax.svg?style=social&label=Follow&maxAge=2592000)](https://twitter.com/throbax)