no email. travis badge

.travis.yml

@@ -1,3 +1,6 @@
 language: rust
 rust:
   - nightly
+
+notifications:
+  email: false

readme.md

@@ -1,4 +1,4 @@
-# Imposter's Handbook
+# Imposter's Handbook [![Build Status](https://travis-ci.org/statianzo/imposters.svg?branch=master)](https://travis-ci.org/statianzo/imposters)
 Rust implementations for [Imposter's Handbook][1] topics. Follow along by listening to the [BookBytes podcast][2].
 
 ## Running the tests
@@ -14,4 +14,4 @@ cargo bench
 ```
 
 [1]: https://bigmachine.io/products/the-imposters-handbook/
-[2]: https://www.orbit.fm/bookbytes/
+[2]: https://www.orbit.fm/bookbytes/