changed badges to release/4 branch

Author: host6

README.md

@@ -1,6 +1,6 @@
 [![Release](https://jitpack.io/v/scm4j/scm4j-vcs-api.svg)](https://jitpack.io/#scm4j/scm4j-vcs-api)
-[![Build Status](https://travis-ci.org/scm4j/scm4j-vcs-api.svg?branch=master)](https://travis-ci.org/scm4j/scm4j-vcs-api)
-[![Coverage Status](https://coveralls.io/repos/github/scm4j/scm4j-vcs-api/badge.svg?branch=master)](https://coveralls.io/github/scm4j/scm4j-vcs-api?branch=master) 
+[![Build Status](https://travis-ci.org/scm4j/scm4j-vcs-api.svg?branch=release/4)](https://travis-ci.org/scm4j/scm4j-vcs-api)
+[![Coverage Status](https://coveralls.io/repos/github/scm4j/scm4j-vcs-api/badge.svg?branch=release/4)](https://coveralls.io/github/scm4j/scm4j-vcs-api?branch=release/4) 
 
 # Overview
 scm4j-vcs-api is set of base classes and interfaces to build VCS support (Git, SVN, etc) libraries which exposes basic vcs-related operations: merge, branch create etc.