fix settings url

Author: brianamarie

responses/00_class-introduction-issue.md

@@ -18,7 +18,7 @@ For this course, you'll need to know how to create a branch on GitHub, commit ch
 
 The first step to publishing your blog to the web is to enable GitHub Pages on this repository <sup>[:book:](https://help.github.com/articles/github-glossary/#repository)</sup>. When you enable GitHub Pages on a repository, GitHub takes the content that's on the master branch and publishes a website based on its contents.
 
-1. Under your repository name, click [**Settings**](https://github.com/{{ owner }}/{{ repo }}/settings)
+1. Under your repository name, click [**Settings**]{{ repoUrl }}/settings)
 1. In the "GitHub Pages" section, click **Launch automatic page generator**
 1. Edit the **Project name** and **Body** to be what you'd like your main page to display
 1. Click **Continue to layouts**