Add circleci config (#19)

.circleci/config.yml

@@ -0,0 +1,9 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/golang:1.15.2
+    working_directory: /go/src/github.com/mozilla/protodash
+    steps:
+      - checkout
+      - run: go build -o protodash

README.md

@@ -1,3 +1,6 @@
+[![CircleCI](https://circleci.com/gh/mozilla/protodash.svg?style=shield&circle-token=742fb1108f7e6e5a28c11d43b21f62605037f5a4)](https://circleci.com/gh/mozilla/protodash)
+
+
 # ProtoDash
 
 ProtoDash is a tool to aid the rapid development of prototype dashboards and enable data engineering and data science to deploy static sites without the need to engage with ops.