enable release-drafter (#166)

Author: car-roll

.github/release-drafter.yml

@@ -0,0 +1,4 @@
+_extends: .github
+name-template: v$NEXT_MINOR_VERSION 🌈
+tag-template: workflow-durable-task-step-$NEXT_MINOR_VERSION
+

.github/workflows/release-drafter.yml

@@ -0,0 +1,17 @@
+# Automates creation of Release Drafts using Release Drafter
+# More Info: https://github.com/jenkinsci/.github/blob/master/.github/release-drafter.adoc
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      # Drafts your next Release notes as Pull Requests are merged into "master"
+      - uses: release-drafter/[email protected]
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+

CHANGELOG.md

@@ -1,5 +1,7 @@
 # Changelog
 
+* For newer versions, see [GitHub Releases](https://github.com/jenkinsci/workflow-durable-task-step-plugin/releases)
+
 ## 2.39
 
 Release date: 2021-05-10

README.md

@@ -1,17 +1,13 @@
 Pipeline: Nodes and Processes
 ===
 
-[![Jenkins Plugin](https://img.shields.io/jenkins/plugin/v/workflow-durable-task-step)](https://plugins.jenkins.io/workflow-durable-task-step)
-[![Changelog](https://img.shields.io/github/v/tag/jenkinsci/workflow-durable-task-step-plugin?label=changelog)](https://github.com/jenkinsci/workflow-durable-task-step-plugin/blob/master/CHANGELOG.md)
-[![Jenkins Plugin Installs](https://img.shields.io/jenkins/plugin/i/workflow-durable-task-step?color=blue)](https://plugins.jenkins.io/workflow-durable-task-step)
-
 A component of [Pipeline Plugin](https://wiki.jenkins.io/display/JENKINS/Pipeline+Plugin).
 
 Pipeline steps locking agents and workspaces, and running external processes that may survive a Jenkins restart or agent reconnection.
 
 ## Documentation
 
-* [Changelog](https://github.com/jenkinsci/workflow-durable-task-step-plugin/blob/master/CHANGELOG.md)
+* [Changelog](https://github.com/jenkinsci/workflow-durable-task-step-plugin/releases)
 
 ## License