adding GH workflow

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    name: ${{ matrix.test-type }} test on OTP ${{matrix.otp}}
+    strategy:
+      matrix:
+        otp: ['22.3', '21.3']
+        test-type: [ 'regular' , 'integration' ]
+    runs-on: 'ubuntu-20.04'
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ErlGang/setup-erlang@v1.0.0
+        with:
+          otp-version: ${{ matrix.otp }}
+      - if: matrix.test-type == 'regular'
+        run: make test
+      - if: matrix.test-type == 'integration' 
+        run: make integration_test