Add nostromo artwork and gopher

README.md

@@ -2,8 +2,15 @@
 [![Coveralls github](https://img.shields.io/coveralls/github/pokanop/nostromo)](https://coveralls.io/github/pokanop/nostromo)
 [![GitHub](https://img.shields.io/github/license/pokanop/nostromo)](https://github.com/pokanop/nostromo/blob/master/LICENSE)
 
+<p align="center">
+  <img src="images/nostromo-mess-hall.png" alt="nostromo-mess-hall">
+</p>
+
 # nostromo
-<img src="images/nostromo-manifest-show.png" alt="nostromo">
+
+<p align="center">
+    <img src="images/nostromo-manifest-show.png" alt="nostromo">
+</p>
 
 nostromo is a CLI to manage aliases through simple commands to add and remove scoped aliases and substitutions.
 
@@ -132,6 +139,8 @@ eval "$(nostromo completion --zsh)" # for zsh
 ## Credits
 - This tool was bootstrapped using [cobra](https://github.com/spf13/cobra).
 - Colored logging provided by [aurora](https://github.com/logrusorgru/aurora).
+- Nostromo fan art supplied by [Ian Stewart](https://www.artstation.com/artwork/EBBVN).
+- Gopher artwork by [@egonelbre](https://github.com/egonelbre/gophers) and original by [Renee French](http://reneefrench.blogspot.com/).
 
 ## Contibuting
 Contributions are what makes the open-source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**.