Edited badge for coverage to get data from master

README.md

@@ -2,7 +2,7 @@
 #### Helper library for consuming data from http://swapi.co/
 
 [![Build status](https://ci.appveyor.com/api/projects/status/xoi0pbdwbr1bnti0/branch/master?svg=true)](https://ci.appveyor.com/project/M-Yankov/swapi-csharp/branch/master)
-[![Coverage Status](https://coveralls.io/repos/github/M-Yankov/SWapi-CSharp/badge.svg?branch=)](https://coveralls.io/github/M-Yankov/SWapi-CSharp?branch=)
+[![Coverage Status](https://coveralls.io/repos/github/M-Yankov/SWapi-CSharp/badge.svg?branch=master)](https://coveralls.io/github/M-Yankov/SWapi-CSharp?branch=master)
 
 ### Install