Attemping to do some CI

.github/workflows/ci.yml

@@ -0,0 +1,38 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - 'README.md'
+      - 'CODE_OF_CONDUCT.md'
+      - '.editorconfig'
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    name: Test
+    runs-on: macOS-latest
+    strategy:
+      matrix:
+        destination:
+          - "platform=macOS"
+          - "platform=iOS Simulator,name=iPhone 11"
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Test platform ${{ matrix.destination }}
+        run: set -o pipefail && xcodebuild -scheme EditorConfig -destination "${{ matrix.destination }}" test | xcpretty
+  linux-test:
+    name: Test Linux
+    runs-on: ubuntu-latest
+    container:
+      image: swift:latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Test
+        run: swift test