feat: add github actions for build process

Author: cryptobioz

.github/workflows/build.yml

@@ -0,0 +1,13 @@
+name: "Build"
+on:
+  pull_request:
+  push:
+
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: yarn install
+      - run: yarn build