added release action

Author: jerson

.github/workflows/release.yml

@@ -0,0 +1,28 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: scottbrenner/generate-changelog-action@master
+        id: Changelog
+        env:
+          REPO: ${{ github.repository }}
+      - uses: actions/create-release@latest
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          body: |
+            ${{ steps.Changelog.outputs.changelog }}
+          draft: false
+          prerelease: false