chore: switch from Travis CI to GitHub Actions

Author: bmish

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [8.x, 10.x, 12.x, 14.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: yarn install --frozen-lockfile --non-interactive
+    - run: yarn test

.travis.yml

@@ -1,6 +1,6 @@
 # find-yarn-workspace-root
 
-[![Build Status](https://travis-ci.org/square/find-yarn-workspace-root.svg?branch=master)](https://travis-ci.org/square/find-yarn-workspace-root)
+![CI](https://github.com/square/find-yarn-workspace-root/workflows/CI/badge.svg)
 
 Algorithm for finding the root of a yarn workspace, extracted from yarnpkg.com
 
@@ -40,13 +40,17 @@ Then create a branch for your bugfix/feature, make changes and update the tests,
 
 ## Releases
 
-Releases are handled by Travis CI once a build succeeds on `master`. To trigger a release, bump the version using `standard-version`:
+To trigger a release, bump the version using `standard-version`:
 
-```bash
-$(yarn bin)/standard-version
-```
+1. To update the CHANGELOG, bump the version in `package.json`, and create a git tag, run:
+
+   ```bash
+   $(yarn bin)/standard-version
+   ```
+
+2. `git push && git push --tags`
 
-That should update the CHANGELOG, bump the version in `package.json`, and create a git tag. Then, just `git push && git push --tags`.
+3. `npm publish`
 
 ---
 Copyright 2017 Square, Inc.