Changed the version in README

Author: mirrodi

README.md

@@ -33,7 +33,7 @@ Maven Plugin `spotless-maven-plugin` hinzufügen:
  <dependency>
  <groupId>de.muenchen.itm</groupId>
  <artifactId>itm-java-codeformat</artifactId>
- <version>1.0.0</version>
+ <version>${itm-codeformat.version}</version> 
  </dependency>
  </dependencies>
  <configuration>