Added BadIO

README.md

@@ -767,6 +767,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * Testing Frameworks
     * [assert](https://github.com/go-playground/assert) - Basic Assertion Library used along side native go testing, with building blocks for custom assertions
     * [assert](https://github.com/bmizerany/assert) - Asserts to Go testing
+    * [badio](https://github.com/cavaliercoder/badio) - Extensions to Go's `testing/iotest` package
     * [bro](https://github.com/marioidival/bro) - Watch files in directory and run tests for them
     * [frisby](https://github.com/verdverm/frisby) - a REST API testing framework
     * [ginkgo](http://onsi.github.io/ginkgo/) - BDD Testing Framework for Go