Add change log generator for Release generator.

.github/workflows/release.yml

@@ -11,19 +11,20 @@ jobs:
     name: Create Release
     runs-on: ubuntu-latest
     steps:
+      - uses: heinrichreimer/[email protected]
+        id: change_log
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
       - name: Checkout code
         uses: actions/checkout@v2
       - name: Create Release
         id: create_release
         uses: actions/create-release@v1
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           tag_name: ${{ github.ref }}
           release_name: Release ${{ github.ref }}
-          body: |
-            Changes in this Release
-            - First Change
-            - Second Change
+          body: ${{ steps.change_log.outputs.changelog }}
           draft: true
           prerelease: false