try to get separate badges for Travis

Author: ianfixes

.travis.yml

@@ -5,6 +5,18 @@ os:
   - linux
   - osx
 
+env:
+  - BADGE=linux
+  - BADGE=osx
+
+# hack to get some OS-specific badges
+matrix:
+  exclude:
+    - os: linux
+      env: BADGE=osx
+    - os: osx
+      env: BADGE=linux
+
 #before_install: gem install bundler -v 1.15.4
 script:
    - g++ -v

README.md

@@ -1,11 +1,17 @@
 [![Gem Version](https://badge.fury.io/rb/arduino_ci.svg)](https://rubygems.org/gems/arduino_ci)
-[![Linux Build Status](https://travis-ci.org/ianfixes/arduino_ci.svg)](https://travis-ci.org/ianfixes/arduino_ci)
-[![Windows Build status](https://ci.appveyor.com/api/projects/status/8f6e39dea319m83q?svg=true)](https://ci.appveyor.com/project/ianfixes/arduino-ci)
 [![Documentation](http://img.shields.io/badge/docs-rdoc.info-blue.svg)](http://www.rubydoc.info/gems/arduino_ci/0.1.9)
 
 # ArduinoCI Ruby gem (`arduino_ci`)
 
-[Arduino CI](https://github.com/ianfixes/arduino_ci) is a Ruby gem for executing Continuous Integration (CI) tests on an Arduino library -- both locally and as part of a service like Travis CI.
+[Arduino CI](https://github.com/ianfixes/arduino_ci) is a cross-platform Ruby gem for executing Continuous Integration (CI) tests on an Arduino library -- both locally and as part of a service like Travis CI.
+
+## Portability
+
+Platform | CI Status
+---------|:---------
+OSX      | [![OSX Build Status](http://badges.herokuapp.com/travis/ianfixes/arduino_ci?env=BADGE=osx&label=build&branch=master)](https://travis-ci.org/ianfixes/arduino_ci)
+Linux    | [![Linux Build Status](http://badges.herokuapp.com/travis/ianfixes/arduino_ci?env=BADGE=linux&label=build&branch=master)](https://travis-ci.org/ianfixes/arduino_ci)
+Windows  | [![Windows Build status](https://ci.appveyor.com/api/projects/status/8f6e39dea319m83q?svg=true)](https://ci.appveyor.com/project/ianfixes/arduino-ci)
 
 
 ## Installation In Your GitHub Project And Using Travis CI