chore: add github action to release automatically with changesets

.github/workflows/release.yml

@@ -0,0 +1,34 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@master
+        with:
+          # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
+          fetch-depth: 0
+
+      - name: Setup Node.js 12.x
+        uses: actions/setup-node@master
+        with:
+          node-version: 12.x
+
+      - name: Install Dependencies
+        run: yarn
+
+      - name: Create Release Pull Request or Publish to npm
+        uses: changesets/action@master
+        with:
+          # this expects you to have a script called release which does a build for your packages and calls changeset publish
+          publish: yarn ci:release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

package.json

@@ -6,6 +6,7 @@
   "scripts": {
     "ci:build": "yarn build",
     "ci:test:cov": "nyc --reporter=lcov yarn test",
+    "ci:release": "changeset publish",
     "test": "ava",
     "test:cov": "nyc --reporter=lcov --reporter=text yarn test",
     "build": "yarn build:ts && yarn build:core:cli",