README.md in dimsum-0.0.3 vs README.md in dimsum-0.0.4

@@ -17,10 +17,15 @@
 
     $ gem install dimsum
 
 ## Usage
 ```sh
-sample.rb  filename
+dimsum filename
+  -n, --number [Fixnum]
+```
+or
+```sh
+cat filename | dimsum
   -n, --number [Fixnum]
 ```
 ## Contributing
 
 1. Fork it