Fixed the revision history table

Author: Shadow Man

versions/1.2.md

@@ -15,7 +15,7 @@ The Swagger specification defines a set of files required to describe such an AP
 ## 2. Revision History
 
 Version | Date | Notes
---- | ---
+--- | --- | ---
 1.2 | 2014-03-14 | Initial release of the formal document. 
 1.1 | 2012-08-22 | Release of Swagger 1.1
 1.0 | 2011-08-10 | First release of the Swagger Specification