README.md in octopress-linkblog-2.0.1 vs README.md in octopress-linkblog-2.0.2

@@ -25,11 +25,11 @@
     $ gem install octopress-linkblog
 
 Then add the gem to your Jekyll configuration.
 
     gems:
-      -octopress-linkblog
+      - octopress-linkblog
 
 ## Usage
 
 ### Post features
 
@@ -46,11 +46,11 @@
 Here is an example. Given the following YAML front-matter:
 
 ```
 ---
 title: cats are awesome
-external-url: http://cats.example.com
+external_url: http://cats.example.com
 ---
 ```
 
 The post would have these attributes:
 
@@ -70,10 +70,10 @@
 ### Site features
 
 In addition, the site payload will have two new post arrays:
 
 - `site.articles` - Will contain standard posts only.
-- `site.linkposts` - Will contain only posts with an `external-url`
+- `site.linkposts` - Will contain only posts with an `external_url`
 
 This may have many uses, but one in particular is the option to allow RSS feeds for each type
 of post.
 
 ## Configuration