added artifact to build action

.github/workflows/build.yml

@@ -35,6 +35,12 @@ jobs:
     - name: Run Build
       run: yarn build
       
+    - name: Upload Build as Artifact
+      uses: actions/upload-artifact@v1
+      with:
+        name: dist
+        path: dist
+
     - name: Run Unit Tests
       run: |
         yarn test --coverage