Test GH workflow (#264)

* Test GH workflow

* Try different npm install approach

* Remove .npmrc and use package-lock

* Keep package lock, publish to coveralls

* Use min for all builds, fix lcov

.github/workflows/build-ci.yml

@@ -0,0 +1,22 @@
+name: build-ci
+on: [push]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: bahmutov/npm-install@v1.6.0
+        with:
+          useRollingCache: true
+      - uses: browser-actions/setup-chrome@latest
+      - run: chrome --version
+      - run: lerna run min
+      - name: Run tests
+        uses: GabrielBB/xvfb-action@v1
+        with:
+          run: lerna run test-cov
+      - name: Publish to coveralls.io
+        uses: coverallsapp/github-action@v1.1.2
+        with:
+          github-token: ${{ github.token }}
+          path-to-lcov: ./packages/diffhtml/coverage/lcov.info

.gitignore

@@ -3,4 +3,3 @@ dist
 coverage
 .nyc_output
 lerna-debug.log
-package-lock.json

README.md

@@ -1,6 +1,6 @@
 # <±/> diffHTML
 
-[![Build Status](https://travis-ci.com/tbranyen/diffhtml.svg?branch=master)](https://travis-ci.com/tbranyen/diffhtml)
+[![Build Status](https://github.com/tbranyen/diffhtml/actions/workflows/build-ci.yml/badge.svg)](https://github.com/tbranyen/diffhtml/actions/workflows/build-ci.yml)
 [![Coverage
   Status](https://coveralls.io/repos/tbranyen/diffhtml/badge.svg?branch=master&service=github)](https://coveralls.io/github/tbranyen/diffhtml?branch=master)
 

lerna.json

@@ -1,5 +1,5 @@
 {
-  "lerna": "3.22.1",
+  "lerna": "4.0.0",
   "packages": [
     "packages/*"
   ],