Update maven-wrapper URL

Author: scordio

Maven.gitignore

@@ -7,7 +7,7 @@ release.properties
 dependency-reduced-pom.xml
 buildNumber.properties
 .mvn/timing.properties
-# https://github.com/takari/maven-wrapper#usage-without-binary-jar
+# https://maven.apache.org/wrapper/#usage-without-binary-jar
 .mvn/wrapper/maven-wrapper.jar
 
 # Eclipse m2e generated files