fix travis baget link

Author: digitronik

README.md

@@ -3,7 +3,8 @@
 
 <p align="center">
     <a href="https://pypi.org/project/linkstatus"><img alt="Python Versions" src="https://img.shields.io/pypi/pyversions/linkstatus.svg?style=flat"></a>
-    <a href="https://travis-ci.org/digitronik/linkstatus"><img alt="Build Status" src="https://travis-ci.org/digitronik/linkstatus.svg?branch=master"></a>
+    <a href="https://travis-ci.com/digitronik/linkstatus"><img alt="Build Status" 
+    src="https://travis-ci.com/digitronik/linkstatus.svg?branch=master"></a>
     <a href="https://github.com/digitronik/linkstatus/blob/master/LICENSE"><img alt="License: GPLv3" src="https://img.shields.io/pypi/l/linkstatus.svg?version=latest"></a>
     <a href="https://pypi.org/project/linkstatus/#history"><img alt="PyPI version" src="https://badge.fury.io/py/linkstatus.svg"></a>
     <a href="https://pepy.tech/project/linkstatus"><img alt="Downloads" src="https://pepy.tech/badge/linkstatus"></a>