[JENKINS-59172] - Use GitHub as a source of the plugin's documentation on plugins.jenkins.io

Author: oleg-nenashev

pom.xml

@@ -20,7 +20,7 @@
       </license>
     </licenses>
 
-    <url>https://wiki.jenkins.io/display/JENKINS/Docker+Pipeline+Plugin</url>
+    <url>https://github.com/jenkinsci/docker-workflow-plugin</url>
     <scm>
       <connection>scm:git:git://github.com/jenkinsci/${project.artifactId}-plugin.git</connection>
       <developerConnection>scm:git:[email protected]:jenkinsci/${project.artifactId}-plugin.git</developerConnection>