Added missing . in changelog. (#485)

Author: pbendersky

CHANGELOG.md

@@ -9,7 +9,7 @@
 * [#476](https://github.com/ruby-grape/grape-swagger/pull/476): Fixes for handling the parameter type when body parameters are defined inside desc block - [@anakinj](https://github.com/anakinj).
 * [#478](https://github.com/ruby-grape/grape-swagger/pull/478): Refactors building of properties, corrects documentation of array items - [@LeFnord](https://github.com/LeFnord).
 * [#479](https://github.com/ruby-grape/grape-swagger/pull/479): Fix regex for Array and Multi Type in doc_methods. Parsing of "[APoint]" should return "APoint" - [@frodrigo](https://github.com/frodrigo).
-* [#483](https://github.com/ruby-grape/grape-swagger/pull/483): Added support for nicknamed routes - [@pbendersky](https://github.com/pbendersky)
+* [#483](https://github.com/ruby-grape/grape-swagger/pull/483): Added support for nicknamed routes - [@pbendersky](https://github.com/pbendersky).
 * Your contribution here.
 
 ### 0.22.0 (July 12, 2016)