update travis badges

Author: Ciaran Welsh

ReadMe.md

@@ -1,5 +1,6 @@
 
-Master [![Master Status](https://travis-ci.org/CiaranWelsh/pycotools3.svg?branch=master)](https://travis-ci.org/CiaranWelsh/pycotools3)     Develop  [![Develop Status](https://travis-ci.org/CiaranWelsh/pycotools3.svg?branch=develop)](https://travis-ci.org/CiaranWelsh/pycotools3)           
+[![Master Status](https://travis-ci.org/CiaranWelsh/pycotools3.svg?branch=master)](https://travis-ci.org/CiaranWelsh/pycotools3)       
+[![Develop Status](https://travis-ci.org/CiaranWelsh/pycotools3.svg?branch=develop)](https://travis-ci.org/CiaranWelsh/pycotools3)           
 
 pycotools3 is in the process of development. The master branch is stable but experimental and the others should not be used. The next version of pycotools3 will be released in a few weeks.