add release notes template

Author: Chenying Zhao

.github/release.yml

@@ -0,0 +1,20 @@
+changelog:
+  exclude:
+    labels:
+      - ignore-for-release
+  categories:
+    - title: 🛠 Breaking Changes
+      labels:
+        - breaking-change
+    - title: 🎉 Exciting New Features
+      labels:
+        - enhancement
+    - title: 👎 Deprecations
+      labels:
+        - deprecation
+    - title: 🐛 Bug Fixes
+      labels:
+        - bug
+    - title: Other Changes
+      labels:
+        - "*"