Remove unnecessary closing parenthesis in README

README.md

@@ -408,7 +408,7 @@ If the customization at the views level is not enough, you can customize each co
       ...
     end
     ```
-    Use the `-c` flag to specify one or more controllers, for example: `rails generate devise:controllers users -c sessions`)
+    Use the `-c` flag to specify one or more controllers, for example: `rails generate devise:controllers users -c sessions`
 
 2. Tell the router to use this controller: