Tests: CI through github instead of Travis

Author: wsnyder

.github/workflows/build.yml

@@ -0,0 +1,25 @@
+# DESCRIPTION: Github actions config
+name: build
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * 0' # weekly
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+# This uses the ":stable" version of Verilator, you may prefer ":latest"
+# We run make from inside the container, overriding default entry point (Verilator binary itself)
+# You may prefer to build install Verilator from git locally (slower but avoids docker)
+      - name: Verilate
+        run: docker run -v ${PWD}:/work --user $(id -u):$(id -g) -e CCACHE_DIR=/work/.ccache --entrypoint make verilator/verilator:stable
+
+
+      - name: Publish
+        run: bash <(curl -s https://codecov.io/bash)

.travis.yml

@@ -1,20 +1,19 @@
 # SystemVerilog Verilator Codecov Tutorial
 
-[![Travis CI logo](TravisCI.png)](https://travis-ci.org)
-![Whitespace](Whitespace.png)
 [![Codecov logo](Codecov.png)](https://www.codecov.io)
 ![Whitespace](Whitespace.png)
 [![Verilator logo](verilator_56x48-min.png)](https://verilator.org)
 
-[![Build Status](https://travis-ci.org/verilator/example-systemverilog.svg?branch=master)](https://travis-ci.org/verilator/example-systemverilog)
+[![Build Status](https://github.com/verilator/example-systemverilog/workflows/build/badge.svg)](https://github.com/verilator/example-systemverilog-mode/actions?query=workflow%3Abuild)
+
 [![codecov.io](https://codecov.io/github/verilator/example-systemverilog/coverage.svg?branch=master)](https://codecov.io/github/verilator/example-systemverilog?branch=master)
 
 This GitHub is part of [the SystemVerilog Verilator Codecov Tutorial](https://github.com/verilator/example-systemverilog).
 
 The goal of this project is to demonstrate a SystemVerilog project with:
  * Verilator
  * C++ compiler: `g++`
- * Travis-CI running Docker
+ * GitHub actions CI running Docker
  * Code coverage with `verilator_coverage` (note: it should show the code coverage is below 100%)
  * Code coverage published in CodeCov.