Add release-drafter configuration

Resolves adamrehn#188

Author: slonopotamus

.github/release-drafter.yml

@@ -0,0 +1,8 @@
+name-template: 'v$RESOLVED_VERSION'
+tag-template: 'v$RESOLVED_VERSION'
+version-resolver:
+  default: patch
+template: |
+  ## Changes
+
+  $CHANGES

.github/workflows/release-drafter.yml

@@ -0,0 +1,13 @@
+name: Release Drafter
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}