[service-bus] remove Preview from service-bus (Azure#12664)

Author: chradek

sdk/servicebus/service-bus/CHANGELOG.md

@@ -3,8 +3,12 @@
 ## 7.0.0 (2020-11-23)
 
 - This release marks the general availability of the `@azure/service-bus` package.
+- If you are using version 1.1.10 or lower and want to migrate to the latest version
+of this package please look at our [migration guide to move from Service Bus V1 to Service Bus V7](https://github.com/Azure/azure-sdk-for-js/blob/master/sdk/servicebus/service-bus/migrationguide.md)
 
 ### Breaking changes
+**Note:** The following breaking changes are with respect to version `7.0.0-preview.8`.
+If migrating from version 1.1.10 or lower, look at our [migration guide to move from Service Bus V1 to Service Bus V7](https://github.com/Azure/azure-sdk-for-js/blob/master/sdk/servicebus/service-bus/migrationguide.md).
 
 - The `ServiceBusError.reason` field has been renamed `ServiceBusError.code`.
   The `code` field can be used to differentiate what caused a `ServiceBusError` to be thrown.

sdk/servicebus/service-bus/README.md

@@ -1,4 +1,4 @@
-# Azure Service Bus client library for Javascript (Preview)
+# Azure Service Bus client library for Javascript
 
 [Azure Service Bus](https://azure.microsoft.com/services/service-bus/) is a highly-reliable cloud messaging service from Microsoft.
 
@@ -24,7 +24,7 @@ Samples for v1 and documentation are still available here:
 [Samples for @azure/service-bus v1.1.x](https://github.com/Azure/azure-sdk-for-js/tree/master/sdk/servicebus/service-bus/samples-v1)
 
 **NOTE**: If you are using version 1.1.10 or lower and want to migrate to the latest version
-of this package please look at our [migration guide to move from Service Bus V1 to Service Bus V7 Preview][migrationguide]
+of this package please look at our [migration guide to move from Service Bus V1 to Service Bus V7][migrationguide]
 
 ## Getting Started
 

sdk/servicebus/service-bus/package.json

@@ -4,7 +4,7 @@
   "author": "Microsoft Corporation",
   "version": "7.0.0",
   "license": "MIT",
-  "description": "Azure Service Bus SDK for Node.js",
+  "description": "Azure Service Bus SDK for JavaScript",
   "homepage": "https://github.com/Azure/azure-sdk-for-js/tree/master/sdk/servicebus/service-bus",
   "repository": "github:Azure/azure-sdk-for-js",
   "keywords": [