Add new workflows.

.github/workflows/linux.yml

@@ -0,0 +1,29 @@
+name: linux
+on: [push]
+jobs:
+
+  build:
+    name: build
+    runs-on: [ ubuntu-latest ]
+    steps:
+
+    - name: Set up Go
+      uses: actions/setup-go@v2.1.3
+      with:
+        go-version: 1.15
+      id: go
+
+    - name: Go version
+      run: go version
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2.3.4
+
+    - name: Get dependencies
+      run: go get -v -t -d ./...
+
+    - name: Build
+      run: go build -v .
+
+    - name: Test
+      run: go test ./...

.github/workflows/windows.yml

@@ -0,0 +1,26 @@
+name: windows
+on: [push]
+jobs:
+
+  build:
+    name: build
+    runs-on: [ windows-latest ]
+    steps:
+
+    - name: Set up Go
+      uses: actions/setup-go@v2.1.3
+      with:
+        go-version: 1.15
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2.3.4
+
+    - name: Get dependencies
+      run: go get -v -t -d ./...
+
+    - name: Build
+      run: go build -v .
+
+    - name: Test
+      run: go test ./...