Update travis reference

Author: st0012

README.md

@@ -3,7 +3,7 @@
 
 [![](https://goby-slack-invite.herokuapp.com/badge.svg)](https://goby-slack-invite.herokuapp.com)
 [![Discord](https://img.shields.io/discord/678892628955103232?label=discord)](https://discord.gg/SS5HbYN)
-[![Build Status](https://travis-ci.org/goby-lang/goby.svg?branch=master)](https://travis-ci.org/goby-lang/goby)
+[![Build Status](https://travis-ci.com/goby-lang/goby.svg?branch=master)](https://travis-ci.com/goby-lang/goby)
 [![GoDoc](https://godoc.org/github.com/goby-lang/goby?status.svg)](https://godoc.org/github.com/goby-lang/goby)
 [![Go Report Card](https://goreportcard.com/badge/github.com/goby-lang/goby)](https://goreportcard.com/report/github.com/goby-lang/goby)
 [![codecov](https://codecov.io/gh/goby-lang/goby/branch/master/graph/badge.svg)](https://codecov.io/gh/goby-lang/goby)