Release Drafter (#6)

* Create release-drafter.yml

* Create release-drafter.yml

* Update .yamllint

Author: ctalkington

.github/release-drafter.yml

@@ -0,0 +1,4 @@
+template: |
+  ## What’s Changed
+
+  $CHANGES

.github/workflows/release-drafter.yml

@@ -0,0 +1,14 @@
+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 }}

.yamllint

@@ -1,6 +1,6 @@
 ---
 ignore: |
-  .github/workflows/
+  .github/
 rules:
   braces:
     level: error