Fix linkage to v5.5.0

Author: lefticus

_posts/2014-11-10-release_5.5.0.markdown

@@ -2,7 +2,7 @@
 title: Release 5.5.0
 tags: release
 ---
-## [Release 5.5.0](https://github.com/ChaiScript/ChaiScript/releases/tag/v5.4.0 "Release 5.5.0")
+## [Release 5.5.0](https://github.com/ChaiScript/ChaiScript/releases/tag/v5.5.0 "Release 5.5.0")
 
 ### Changes since 5.4.0
 * 2x performance increase