point out broken pages URL, fix direct link

responses/05-h1-tag.md

@@ -1,6 +1,6 @@
 ## Step 6: Add a header
 
-Take a peek at your shiny new web page! It can be found at: https://{{user.username}}.github.io/{{repo}}/
+Take a peek at your shiny new web page! It can be found at: <# TODO FIX URL https://{{user.username}}.github.io/{{repo}}/>
 
 Headers create prominent text in the body of your web page. Headers come in different levels. For example, a header 1, or h1, is the largest, while a header 3, or h3, is smaller, and a header 6, or h6, smaller still. You can create headers in html using the h1, h2, h3, h4, h5, and h6 tags. Here's an example:
 
@@ -11,7 +11,7 @@ Headers create prominent text in the body of your web page. Headers come in diff
 ### :keyboard: Create a header for your web page
 
 
-1. Edit the `index.html` file in your master branch by [using this direct link](https://github.com/{{ user.username }}/{{ repo }}/edit/master/index.html) or going to the **Code** tab, clicking on the `index.html` file, clicking the pencil :pencil: to edit the HTML.
+1. Edit the `index.html` file in your master branch by [using this direct link]({{ repoUrl }}/edit/master/index.html) or going to the **Code** tab, clicking on the `index.html` file, clicking the pencil :pencil: to edit the HTML.
 1. Between the body tags, add an opening `<h1>` tag, some content for the header, and a closing `</h1>` tag. 
 1. In the _Commit changes_ section, enter a commit message that describes what you've done.
 1. Ensure you've selected _Create a new branch for this commit and start a pull request_.