fix: add % to the badge, closes #6

Author: bahmutov

README.md

@@ -1,4 +1,4 @@
-# check-code-coverage [![ci status][ci image]][ci url] ![mock coverage](https://img.shields.io/badge/code--coverage-100-brightgreen)
+# check-code-coverage [![ci status][ci image]][ci url] ![mock coverage](https://img.shields.io/badge/code--coverage-100%-brightgreen)
 > Utilities for checking the coverage produced by NYC against extra or missing files
 
 ## Use
@@ -34,14 +34,19 @@ check-total --from coverage/coverage-summary.json --min 80
 
 If your README.md includes Shields.io badge, like this
 
-    ![code coverage](https://img.shields.io/badge/code--coverage-80-brightgreen)
+    ![code coverage](https://img.shields.io/badge/code--coverage-80%-brightgreen)
 
 You can update it using statements covered percentage from `coverage/coverage-summary.json` by running
 
 ```shell
 update-badge
 ```
 
+If the coverage summary has 96%, then the above badge would be updated to
+
+
+    ![code coverage](https://img.shields.io/badge/code--coverage-96%-brightgreen)
+
 Related project: [dependency-version-badge](https://github.com/bahmutov/dependency-version-badge)
 
 [ci image]: https://github.com/bahmutov/check-code-coverage/workflows/ci/badge.svg?branch=master

bin/update-badge.js

@@ -15,9 +15,9 @@ function updateBadge() {
   function replaceShield() {
     // note, Shields.io escaped '-' with '--'
     const coverageRe = new RegExp(
-      'https://img\\.shields\\.io/badge/code--coverage-(\\d+)-brightgreen',
+      'https://img\\.shields\\.io/badge/code--coverage-(\\d+)%-brightgreen',
     )
-    const coverageBadge = `https://img.shields.io/badge/code--coverage-${pct}-brightgreen`
+    const coverageBadge = `https://img.shields.io/badge/code--coverage-${pct}%-brightgreen`
 
     const updatedReadmeText = readmeText.replace(
       coverageRe,