[ci skip] update wiki link for MVC

README.md

@@ -2,7 +2,7 @@
 
 Rails is a web-application framework that includes everything needed to
 create database-backed web applications according to the
-[Model-View-Controller (MVC)](http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller)
+[Model-View-Controller (MVC)](http://en.wikipedia.org/wiki/Model-view-controller)
 pattern.
 
 Understanding the MVC pattern is key to understanding Rails. MVC divides your