Add "Visualizing changes" summary

jordanmccullough · jordanmccullough · commit 3403d7aeb8e9 · 2015-01-03T21:23:05.000-07:00
diff --git a/foundations/index.md b/foundations/index.md
@@ -419,6 +419,8 @@ git push origin [master|branch]
 
 ## Visualizing changes with GitHub
 
+Identifying **changes** across document history is easily achieved through GitHub's interface and support for code, prose, graphics files, and more.
+
 ---
 
 ### Details
