docs(contrib): lint

CONTRIBUTING.md

@@ -1,10 +1,8 @@
-Contributing
-============
+# Contributing
 
 I love pull requests from everyone!
 
-Getting Started
----------------
+## Getting Started
 
 ### Install Go
 
@@ -16,27 +14,35 @@ If you will be contributing, then you'll want to [fork the repository](https://h
 
 Once you've forked it, then you can clone the source:
 
-    git clone git@github.com:<your-username>/<repository-name>.git
+```console
+git clone git@github.com:<your-username>/<repository-name>.git
+```
 
 Fetch the required dependencies:
 
-    script/bootstrap
+```console
+script/bootstrap
+```
 
 Before you do any changes, make sure the tests pass:
 
-    script/test
-    script/lint
+```console
+script/test
+script/lint
+```
 
 Make your change. Add tests for your change. Make the tests pass:
 
-    script/test
-    script/lint
+```console
+script/test
+script/lint
+```
 
 Push to your fork and [submit a pull request](https://help.github.com/articles/creating-a-pull-request/).
 
 At this point you're waiting on me. I try to be responsive to pull requests, but you know life can get in the way. I may suggest some changes or improvements or alternatives.
 
-Some things that will increase the chance that your pull request is accepted:
+Some things will increase the chance that your pull request is accepted:
 
 -   Write tests.
 -   Write a [good commit message](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).