Further update

Author: MatthewLusher

README.md

@@ -137,7 +137,7 @@ For more information about the scopes used for obtaining authorization to use th
    This code example demonstrates how to create an envelope where the workflow is routed to different recipients based on the value of a transaction using the [Create Envelope](https://developers.docusign.com/esign-rest-api/reference/Envelopes/Envelopes/create) method.
 1. **Request a signature by SMS delivery**
    [Source.](./launcher-csharp/eSignature/Controllers/Eg035SMSDeliveryController.cs)
-   This code example demonstrates how to send a signature request via an SMS message using the [Create Envelope](https://developers.docusign.com/esign-rest-api/reference/Envelopes/Envelopes/create) method.
+   This code example demonstrates how to send a signature request via an SMS message using the [Envelopes: create](https://developers.docusign.com/esign-rest-api/reference/Envelopes/Envelopes/create) method.
 
 ## Rooms API