update badges link on readme

.npmignore

@@ -3,5 +3,6 @@
 /test
 /jest.config.js
 /tsconfig.json
+/.travis.yml
 /coverage
 *.map

README.md

@@ -1,12 +1,12 @@
 # iso8601-interval
 
 [![Build Status](https://travis-ci.com/CrescentSine/iso8601-interval.svg?branch=main)](https://travis-ci.com/CrescentSine/iso8601-interval)
-![npm](https://img.shields.io/npm/v/iso8601-interval)
-![GitHub](https://img.shields.io/github/license/CrescentSine/iso8601-interval)
-![npm bundle size](https://img.shields.io/bundlephobia/min/iso8601-interval)
-![GitHub top language](https://img.shields.io/github/languages/top/CrescentSine/iso8601-interval)
+[![npm](https://img.shields.io/npm/v/iso8601-interval)](https://www.npmjs.com/package/iso8601-interval)
+[![GitHub](https://img.shields.io/github/license/CrescentSine/iso8601-interval)](https://github.com/CrescentSine/iso8601-interval/blob/main/LICENSE)
+[![npm bundle size](https://img.shields.io/bundlephobia/min/iso8601-interval)](https://www.npmjs.com/package/iso8601-interval)
+[![GitHub top language](https://img.shields.io/github/languages/top/CrescentSine/iso8601-interval)](https://www.typescriptlang.org/)
 [![Coverage Status](https://coveralls.io/repos/github/CrescentSine/iso8601-interval/badge.svg?branch=main)](https://coveralls.io/github/CrescentSine/iso8601-interval?branch=main)
-![GitHub issues](https://img.shields.io/github/issues/CrescentSine/iso8601-interval)
+[![GitHub issues](https://img.shields.io/github/issues/CrescentSine/iso8601-interval)](https://github.com/CrescentSine/iso8601-interval/issues)
 
 A time duration convert library based on tagged template syntax.