Update README.md

Author: sakapon

README.md

@@ -1,2 +1,13 @@
 # Random Data Web API
-Provides the JSON/JSONP API to generate random data.
+Provides the JSON API to generate random data.
+
+### Development Environment
+- .NET Framework 4.5
+- ASP.NET Web API 5.2.3
+- ASP.NET Web API Help Page 5.2.3
+- ASP.NET Web API Cross-Origin Support 5.2.3
+- Blaze 1.1.10
+
+### Release Notes
+- **v1.0.0** The first release, using ASP.NET MVC.
+- **v2.0.5** Use ASP.NET Web API.