remove travis; add github actions

Author: feross

.github/workflows/ci.yml

@@ -0,0 +1,23 @@
+name: ci
+'on':
+  - push
+  - pull_request
+jobs:
+  test:
+    name: Node ${{ matrix.node }} / ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+        node:
+          - '14'
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: ${{ runner.node }}
+      - run: npm install
+      - run: npm run build --if-present
+      - run: npm test

.npmignore

@@ -1,6 +1,5 @@
 .airtap.yml
 .github/
-.travis.yml
 bin/
 perf/
 test/

.travis.yml

@@ -1,7 +1,7 @@
-# buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
+# buffer [![ci][ci-image]][ci-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
 
-[travis-image]: https://img.shields.io/travis/feross/buffer/master.svg
-[travis-url]: https://travis-ci.org/feross/buffer
+[ci-image]: https://img.shields.io/github/workflow/status/feross/buffer/ci/master
+[ci-url]: https://github.com/feross/buffer/actions
 [npm-image]: https://img.shields.io/npm/v/buffer.svg
 [npm-url]: https://npmjs.org/package/buffer
 [downloads-image]: https://img.shields.io/npm/dm/buffer.svg