Use github actions

.github/workflows/test.yml

@@ -0,0 +1,28 @@
+name: test
+on: [push, pull_request]
+
+env:
+  GOPROXY: https://proxy.golang.org,direct
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.19.x, 1.20.x]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Install Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Test
+        run: go test ./... -v -cover
+
+      - name: Race
+        run: go test ./... -race

README.md

@@ -1,4 +1,4 @@
-# rehttp [![build status](https://secure.travis-ci.org/PuerkitoBio/rehttp.png)](http://travis-ci.org/PuerkitoBio/rehttp) [![Go Reference](https://pkg.go.dev/badge/github.com/PuerkitoBio/rehttp.svg)](https://pkg.go.dev/github.com/PuerkitoBio/rehttp)
+# rehttp  [![Build Status](https://github.com/PuerkitoBio/rehttp/actions/workflows/test.yml/badge.svg?branch=master)](https://github.com/PuerkitoBio/rehttp/actions) [![Go Reference](https://pkg.go.dev/badge/github.com/PuerkitoBio/rehttp.svg)](https://pkg.go.dev/github.com/PuerkitoBio/rehttp)
 
 Package rehttp implements an HTTP Transport (an `http.RoundTripper`) that handles retries. See the [godoc][] for details.