chore(workflows): add auto release tag workflow

Author: Teakowa Gatanothor O'deorain

.github/workflows/release-tag.yml

@@ -0,0 +1,24 @@
+on:
+  push:
+    tags:
+      - '1*' # Push events to matching v*, i.e. 1.0, 20.15.10
+
+name: Create Release
+
+jobs:
+  build:
+    name: Create Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Create Release for Tag
+        id: release_tag
+        uses: yyx990803/release-tag@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          body: |
+            Please refer to [CHANGELOG.md](https://github.com/FSPNET/Nginx/blob/master/CHANGELOG.md) for details.