README.rdoc in rack-subdomain-0.0.1 vs README.rdoc in rack-subdomain-0.0.2

@@ -1,8 +1,16 @@
 = rack-subdomain
 
 Simple rack middleware for fetching subdomain from request and modyfing path with fetched subdomain.
 
+== Usage
+
+Example for rails app:
+
+    config.middleware.use(Rack::Subdomain, "example.org", "/users/:subdomain")
+
+This will get subdomains for domain example.org (ie. something.example.org) and will map path to /users/:subdomain/original/path.
+
 == Note on Patches/Pull Requests
  
 * Fork the project.
 * Make your feature addition or bug fix.
 * Add tests for it. This is important so I don't break it in a