Change URL for Travis build status badge.
[![Join the chat at https://gitter.im/VirusTotal/yara](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/VirusTotal/yara?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-[![Travis build status](https://travis-ci.org/VirusTotal/yara.svg)](https://travis-ci.org/VirusTotal/yara)
+[![Travis build status](https://travis-ci.com/VirusTotal/yara.svg)](https://travis-ci.com/VirusTotal/yara)
[![AppVeyor build status](https://ci.appveyor.com/api/projects/status/7glqg19w4oolm7pr?svg=true)](https://ci.appveyor.com/project/plusvic/yara)
[![Coverity status](https://scan.coverity.com/projects/9057/badge.svg?flat=1)](https://scan.coverity.com/projects/plusvic-yara)
