Merge branch 'master' into develop

.github/workflows/go.yml

@@ -0,0 +1,35 @@
+name: Go
+
+on:
+  - push
+  - pull_request
+
+jobs:
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.13
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: |
+        go get -v -t -d ./...
+        if [ -f Gopkg.toml ]; then
+            curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+            dep ensure
+        fi
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test
+      run: go test -v ./...

README.md

@@ -1,7 +1,6 @@
 # Topological Sort for arbitrary slices
 
-[ ![Build Status](https://app.codeship.com/projects/04cf1b10-da68-0134-0795-3a4993b56c58/status?branch=master)](https://app.codeship.com/projects/203652) <sup>(master)</sup>  
-[ ![Build Status](https://app.codeship.com/projects/04cf1b10-da68-0134-0795-3a4993b56c58/status?branch=develop)](https://app.codeship.com/projects/203652) <sup>(develop)</sup>
+![Build/Test Status](https://github.com/fako1024/topo/workflows/Go/badge.svg)
 
 Introduction
 ------------