Add tests on Github actions

Author: camilaagw

.github/workflows/continuos-integration.yml

@@ -0,0 +1,14 @@
+name: continuos-integration
+
+on: [push, pull_request]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+      - run: yarn 
+      - run: yarn build
+      - run: yarn test
+