README.md in stripe-3.15.0 vs README.md in stripe-3.17.0

@@ -112,10 +112,10 @@
   )
 end
 puts resp.request_id
 ```
 
-### Configuration an API Version
+### Configuring an API Version
 
 By default, the library will use the API version pinned to the account making
 a request. This can be overridden with this global option:
 
     Stripe.api_version = "2018-02-28"