Add windows & macos builds

.github/workflows/go.yml

@@ -10,8 +10,7 @@ on:
     branches: [ "main" ]
 
 jobs:
-
-  build:
+  linux:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
@@ -35,3 +34,21 @@ jobs:
 
     - name: Test
       run: go test -v ./...
+  macos:
+    runs-on: macOS-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.20'
+  windows:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.20'