Update README.md

Author: arunoda

README.md

@@ -73,7 +73,7 @@ For a production app, it's recommended to use the Environment Variables based AP
 ~~~js
 // Connect to the cluster with a MongoDB URL. Better if it's a replica set
 var connectOptions = {
-  // Value of 0 to 1, mentioning which port of requestes to process here or proxy
+  // Value of 0 to 1, mentioning which portion of requestes to process here or proxy
   // If 1, all the requests allocated to this host will get processed
   // If 0.5 half of the requsted allocated to this host will get processed, others will get proxied
   // If 0, only do proxying