Added rust 1.28.0 to the list of version to use in travis script

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 5fd42fc..d1f9157 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 ![License](http://img.shields.io/badge/license-BSD-lightgrey.svg)

-[![Build Status](https://travis-ci.org/phsym/prettytable-rs.svg)](https://travis-ci.org/phsym/prettytable-rs)

+[![Build Status](https://travis-ci.org/phsym/prettytable-rs.svg?branch=master)](https://travis-ci.org/phsym/prettytable-rs)

 [![Build status](https://ci.appveyor.com/api/projects/status/wdh9klb35fed6ik9?svg=true)](https://ci.appveyor.com/project/phsym/tabprint)

 [![codecov](https://codecov.io/gh/phsym/prettytable-rs/branch/master/graph/badge.svg)](https://codecov.io/gh/phsym/prettytable-rs)

 [![Crates.io](https://img.shields.io/crates/v/prettytable-rs.svg)](https://crates.io/crates/prettytable-rs)