Update README.md

Author: gfleury

README.md

@@ -1,6 +1,6 @@
 # Go API client for Bitbucket (bitbucket-server V1)
 
-[![Build Status](https://travis-ci.org/gfleury/go-bitbucket-v1.svg?branch=master)](https://travis-ci.org/gfleury/go-bitbucket-v1)
+[![Build Status](https://travis-ci.com/gfleury/go-bitbucket-v1.svg?branch=master)](https://travis-ci.com/gfleury/go-bitbucket-v1)
 [![GoDoc](https://godoc.org/github.com/gfleury/go-bitbucket-v1?status.svg)](https://godoc.org/github.com/gfleury/go-bitbucket-v1)
 [![codecov](https://codecov.io/gh/gfleury/go-bitbucket-v1/branch/master/graph/badge.svg)](https://codecov.io/gh/gfleury/go-bitbucket-v1)