Update README.md

Author: andreasrosdal

README.md

@@ -4,6 +4,7 @@ Libre-wsdl4j is a fork of WSDL4J 1.6.3. WSL4j is a Java stub generator for WSDL.
 
 ![CI](https://github.com/librewsdl4j/libre-wsdl4j/actions/workflows/maven.yml/badge.svg) 
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/io.github.librewsdl4j/libre-wsdl4j/badge.svg)](https://maven-badges.herokuapp.com/maven-central/io.github.librewsdl4j/libre-wsdl4j)
+[![CodeQL](https://github.com/librewsdl4j/libre-wsdl4j/actions/workflows/codeql.yml/badge.svg)](https://github.com/librewsdl4j/libre-wsdl4j/actions/workflows/codeql.yml)
 
 ## Use libre-wsdl4j as Maven dependency