switch to workflows

Author: dim13

.github/workflows/go.yml

@@ -0,0 +1,11 @@
+name: build
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-go@v1
+      with:
+        go-version: 1.x
+    - run: go test -v ./...

.travis.yml

@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/dim13/bit.svg?branch=master)](https://travis-ci.org/dim13/bit)
-[![GoDoc](https://godoc.org/github.com/dim13/bit?status.svg)](https://godoc.org/github.com/dim13/bit)
-
 # variable-lenght bitfield
+
+[![GoDoc](https://godoc.org/github.com/dim13/bit?status.svg)](https://godoc.org/github.com/dim13/bit)
+[![Build](https://github.com/dim13/bit/workflows/build/badge.svg)](https://github.com/dim13/bit/actions)