Add CI status icon

Author: FSou1

.github/workflows/main.yml

@@ -17,11 +17,21 @@ jobs:
     # The type of runner that the job will run on
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        node-version: [8.x, 10.x, 12.x]
+
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
     - uses: actions/checkout@v2
 
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+
     # Runs a single command using the runners shell
     - name: Run tests
       run: npm run test