updated example in readme

README.md

@@ -8,6 +8,20 @@ Simple rate limiting for node.js streams, capable of capping both read and write
 
 # Usage
 
+## http (see examples/http for a more elaborate example)
+
+    var http = require('http')
+      , ratelimit = require('../../');
+
+    http.get('http://someplace.com/path/file.zip', function(res) {
+      var limit = ratelimit(res, 65 * 1024);
+      res.on('data', function(data) {
+        // do whatever with data
+      });
+    });
+
+## other examples
+
 See the tests for now.
 
 # Todo