Add github-release to workflow

Author: Nylle

.github/workflows/publish-to-maven-central.yml

@@ -10,6 +10,17 @@ jobs:
       - name: Check out Git repository
         uses: actions/checkout@v2
 
+      - name: Release GitHub sources
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          body: ${{ github.event.head_commit.message }}
+          draft: false
+          prerelease: false
+
       - name: Install Java and Maven
         uses: actions/setup-java@v1
         with:

RELEASE.md

@@ -0,0 +1,8 @@
+# Steps to release a new version
+
+1. Decide whether to do a patch, minor or major release
+2. Adjust the version in the [pom.xml](pom.xml)
+3. Adjust the version in the [README.md](README.md)
+4. Commit the changes _(the commit message will be the release notes, so make sure to include anything important; markdown is supported)_
+5. Create a tag with the pom-version: `git tag 1.2.3`
+6. Push your commit together with the tag