chore: add initial github cd workflow

Author: john-u

.github/workflows/cd.yml

@@ -0,0 +1,25 @@
+name: CD
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release:
+    if: "!contains(github.event.head_commit.message, 'skip ci')"
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+      - run: npm ci
+      - name: Release
+        env:
+          GITHUB_TOKEN: ${{ secrets.PI_GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: npx semantic-release

.github/workflows/ci.yml

@@ -4,6 +4,7 @@ on: [push, pull_request]
 
 jobs:
   build:
+    if: "!contains(github.event.head_commit.message, 'skip ci')"
 
     runs-on: ubuntu-latest
 
@@ -13,12 +14,12 @@ jobs:
         node-version: [10.x, 12.x]
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
-    - run: npm ci
-    - run: npm run build
-    - run: npm run lint
-    - run: npm test
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm ci
+      - run: npm run build
+      - run: npm run lint
+      - run: npm test