fix: added circle ci

.circleci/config.yml

@@ -0,0 +1,21 @@
+version: 2.1
+jobs:
+  build:
+    docker:
+      - image: circleci/node:12
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - deps-hash-{{ checksum "yarn.lock" }}
+            - deps-hash- # used if checksum fails
+
+      - run: yarn install
+      - run: yarn test
+
+      - save_cache:
+          paths:
+            - node_modules
+          key: deps-hash-{{ checksum "yarn.lock" }}
+
+      - run: yarn build

README.md

@@ -1,6 +1,9 @@
 <h1 align="center">console-table-printer</h1>
 <h3 align="center">🖥️🍭Printing Pretty Tables on your console</h3>
 <p align="center">
+  <a href="https://circleci.com/gh/ayonious/console-table-printer">
+    <img alt="CircleCI" src="https://circleci.com/gh/ayonious/console-table-printer.svg?style=svg">
+  </a>
   <a href="https://codecov.io/gh/ayonious/console-table-printer">
     <img alt="codecov" src="https://codecov.io/gh/ayonious/console-table-printer/branch/master/graph/badge.svg">
   </a>