Use property in url and update README based on review feedback

Author: dwnusbaum

README.md

@@ -75,7 +75,7 @@ See those plugins for details.
 ## Generic SCM step
 
 The `checkout` step may be used to run any other SCM plugin, provided that it has been brought up to date as described below.
-(See the [compatibility list](https://github.com/jenkinsci/pipeline-plugin/blob/master/COMPATIBILITY.md) for the list of currently SCMs.)
+(See the [compatibility list](https://github.com/jenkinsci/pipeline-plugin/blob/master/COMPATIBILITY.md) for the list of currently supported SCMs.)
 It could also be used to run an SCM for which there is a special integration that lacks support for an exotic feature.
 The step takes an `scm` parameter which is a map containing at least a `$class` parameter giving the full or simple class name of the desired `SCM` implementation, and the standard `poll` and `changelog` parameters.
 
@@ -109,7 +109,7 @@ with no `<hudson.triggers.SCMTrigger>` (polling).
 
 ## Supporting Pipeline from an SCM plugin
 
-See the [compatibility guide](https://github.com/jenkinsci/pipeline-plugin/blob/master/DEVGUIDE.md#scms).
+See the [compatibility guide](https://jenkins.io/doc/developer/plugin-development/pipeline-integration/#scms).
 
 ## Version History
 

pom.xml

@@ -12,7 +12,7 @@
     <version>${revision}${changelist}</version>
     <packaging>hpi</packaging>
     <name>Pipeline: SCM Step</name>
-    <url>https://github.com/jenkinsci/workflow-scm-step-plugin</url>
+    <url>https://github.com/jenkinsci/${project.artifactId}-plugin</url>
     <licenses>
         <license>
             <name>MIT License</name>