add disqus comments as per hpstr theme

_posts/2011-03-10-sample-post.md

@@ -4,6 +4,7 @@ title: Sample Post
 description: "Just about everything you'll need to style in the theme: headings, paragraphs, blockquotes, tables, code blocks, and more."
 modified: 2013-05-31
 tags: [intro, beginner, jekyll, tutorial]
+comments: true
 image:
   feature: texture-feature-05.jpg
   credit: Texture Lovers

_posts/2012-05-22-readability-post.md

@@ -3,6 +3,7 @@ layout: post
 title: "Testing Readability with a Bunch of Text"
 description: "A ton of text to test readability."
 tags: [sample post, readability, test]
+comments: true
 ---
 
 Portland in shoreditch Vice, labore typewriter pariatur hoodie fap sartorial Austin. Pinterest literally occupy Schlitz forage. Odio ad blue bottle vinyl, 90's narwhal commodo bitters pour-over nostrud. Ugh est hashtag in, fingerstache adipisicing laboris esse Pinterest shabby chic Portland. Shoreditch bicycle rights anim, flexitarian laboris put a bird on it vinyl cupidatat narwhal. Hashtag artisan skateboard, flannel Bushwick nesciunt salvia aute fixie do plaid post-ironic dolor McSweeney's. Cliche pour-over chambray nulla four loko skateboard sapiente hashtag.

_posts/2013-05-22-sample-post-images.md

@@ -3,6 +3,7 @@ layout: post
 title: "A Post with Images"
 description: "Examples and code for displaying images in posts."
 tags: [sample post, images, test]
+comments: true
 ---
 
 Here are some examples of what a post with images might look like. If you want to display two or three images next to each other responsively use `figure` with the appropriate `class`. Each instance of `figure` is auto-numbered and displayed in the caption.

_posts/2013-05-23-readability-feature-post.md

@@ -3,6 +3,7 @@ layout: post
 title: "Post with Large Feature Image and Text"
 description: "Custom written post descriptions are the way to go... if you're not lazy."
 tags: [sample post, readability, test]
+comments: true
 image:
   feature: texture-feature-04.jpg
   credit: Texture Lovers

_posts/2013-08-16-code-highlighting-post.md

@@ -3,6 +3,7 @@ layout: post
 title: Syntax Highlighting Post
 description: "Demo post displaying the various ways of highlighting code in Markdown."
 tags: [sample post, code, highlighting]
+comments: true
 ---
 
 [Syntax highlighting](http://en.wikipedia.org/wiki/Syntax_highlighting) is a feature that displays source code, in different colors and fonts according to the category of terms. This feature facilitates writing in a structured language such as a programming language or a markup language as both structures and syntax errors are visually distinct. Highlighting does not affect the meaning of the text itself; it is intended only for human readers.