Clarify Rendered Prose Diffs

tiimgreen · tiimgreen · commit 7780982e2887 · 2014-04-14T17:13:10.000+01:00
diff --git a/README.md b/README.md
@@ -327,7 +327,11 @@ The Jemoji and jekyll-mentions plugins enable [emoji](#emojis) and [@mentions](h
 
 ## Diffs
 ### Rendered Prose Diffs
-Commits and pull requests including prose files feature *source* and *rendered* views. Click the "rendered" button to see the changes as they'll appear in the rendered document. Rendered prose view is handy when you're adding, removing, and editing text:
+Commits and pull requests including rendered documents supported by GitHub (e.g. Markdown) feature *source* and *rendered* views.
+
+![Source / Rendered view](https://github-images.s3.amazonaws.com/help/repository/rendered_prose_diff.png)
+
+Click the "rendered" button to see the changes as they'll appear in the rendered document. Rendered prose view is handy when you're adding, removing, and editing text:
 
 ![Rendered Prose Diffs](https://f.cloud.github.com/assets/17715/2003056/3997edb4-862b-11e3-90be-5e9586edecd7.png)
 
