Typo: Invalid markdown syntax

Using a quote instead.

Author: q2s2t

CHANGELOG.md

@@ -1,9 +1,9 @@
-Changelog [^1]
-==============
+Changelog
+=========
 
 ### `v0.1.0` 2014-07-31
 
  * API change: Add a optional `options` parameter to the function.
  * New feature: Use `{ ignore_stages: true }` to only return stables versions.
 
-[^1]: Date in *ISO 8601* format (year-month-day)
+> Date in *ISO 8601* format (year-month-day)