ci(build): add circleci config for build

closes #1

Author: smithad15

.circleci/config.yml

@@ -0,0 +1,33 @@
+defaults: 
+  docker: &docker
+    - image: 'circleci/node:8-browsers'
+
+version: 2
+jobs:
+  build:
+    docker: *docker
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      - restore_cache:
+          keys:
+          - v1-dependencies-{{ checksum "yarn.lock" }}
+          # fallback to using the latest cache if no exact match is found
+          - v1-dependencies-
+
+      - run: yarn install
+
+      - save_cache:
+          paths:
+            - node_modules
+          key: v1-dependencies-{{ checksum "yarn.lock" }}
+        
+      - run: yarn build
+
+workflows:
+  version: 2
+  build:
+    jobs:
+      - build