ci(release): defined a github workflow to release with semantic-release (#923)

Author: travi

.github/workflows/release.yml

@@ -0,0 +1,20 @@
+name: Release
+"on":
+  push:
+    branches:
+      - master
+jobs:
+  release:
+    name: release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          cache: npm
+          node-version: lts/*
+      - run: npm clean-install
+      - run: npx semantic-release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_PUBLISH_TOKEN }}