Add circle config

.circleci/config.yml

@@ -0,0 +1,46 @@
+version: 2.1
+
+defaults: &defaults
+  working_directory: ~/repo
+  docker:
+    - image: circleci/node:10
+
+commands:
+  install:
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+          - dependency-cache-{{ checksum "package.json" }}
+          - dependency-cache-
+      - run: npm install
+      - save_cache:
+          key: dependency-cache-{{ checksum "package.json" }}
+          paths:
+            - node_modules
+
+jobs:
+  birdbox:
+    <<: *defaults
+    steps:
+      - install
+      - run: node index.js
+
+workflows:
+  version: 2
+
+  test:
+    jobs:
+      - birdbox
+
+  poll:
+    triggers:
+      - schedule:
+          # Run once every 5 minutes
+          cron: "0,5,10,15,20,25,30,35,40,45,50,55 * * * *"
+          filters:
+            branches:
+              only:
+                - master
+    jobs:
+      - birdbox