fix travis URLs

Author: freyfogle

README.md

@@ -4,7 +4,7 @@ This module provides a Perl interface to the [OpenCage geocoder](https://opencag
 
 ## Build status
 
-[![Build Status](https://travis-ci.org/OpenCageData/perl-Geo-Coder-OpenCage.svg?branch=master)](https://travis-ci.org/OpenCageData/perl-Geo-Coder-OpenCage)
+[![Build Status](https://api.travis-ci.com/OpenCageData/perl-Geo-Coder-OpenCage.svg?branch=master)](https://travis-ci.com/OpenCageData/perl-Geo-Coder-OpenCage)
 [![Kritika Analysis Status](https://kritika.io/users/OpenCage/repos/2893424605329847/heads/master/status.svg)](https://kritika.io/orgs/OpenCage/repos/2893424605329847/heads/master/)
 [![CPAN](https://img.shields.io/cpan/v/Geo-Coder-OpenCage.svg?style=flat-square)](https://metacpan.org/pod/Geo::Coder::OpenCage)
 [![Coverage Status](https://coveralls.io/repos/github/OpenCageData/perl-Geo-Coder-OpenCage/badge.svg?branch=master)](https://coveralls.io/github/OpenCageData/perl-Geo-Coder-OpenCage?branch=master)