infra: Added codecov test coverage (anuraghazra#147)

* chore: test codecov

* fix: workflow file

* fix: workflow file

* chore: added coverage in vercelignore

* docs: added codecov badge

Author: anuraghazra

Diff for: .github/workflows/test.yml

@@ -34,3 +34,6 @@ jobs:
         run: |
           npm install
           npm run test
+
+      - name: Code Coverage
+        uses: codecov/codecov-action@v1

Diff for: .gitignore

@@ -2,3 +2,4 @@
 .env
 node_modules
 package-lock.json
+coverage

Diff for: .vercelignore

@@ -1,2 +1,3 @@
 .env
-package-lock.json
+package-lock.json
+coverage

Diff for: package.json

@@ -4,7 +4,7 @@
   "description": "Dynamically generate stats for your github readmes",
   "main": "index.js",
   "scripts": {
-    "test": "jest",
+    "test": "jest --coverage",
     "test:watch": "jest --watch"
   },
   "author": "Anurag Hazra",

Diff for: readme.md

@@ -8,6 +8,9 @@
     <a href="https://github.com/anuraghazra/github-readme-stats/actions">
       <img alt="Tests Passing" src="https://github.com/anuraghazra/github-readme-stats/workflows/Test/badge.svg" />
     </a>
+    <a href="https://codecov.io/gh/anuraghazra/github-readme-stats">
+      <img src="https://codecov.io/gh/anuraghazra/github-readme-stats/branch/master/graph/badge.svg" />
+    </a>
     <a href="https://github.com/anuraghazra/github-readme-stats/issues">
       <img alt="Issues" src="https://img.shields.io/github/issues/anuraghazra/github-readme-stats?color=0088ff" />
     </a>