[Recorder] Release the @azure-tools/test-credential exetension library (Azure#21318)

* release test credential

* test credential readme

Author: HarshaNalluru

sdk/test-utils/recorder/README.md

@@ -1,4 +1,4 @@
-## Azure @azure-tools/test-recorder-new library for JavaScript
+## Azure @azure-tools/test-recorder library for JavaScript
 
 **Note: This project is a test utility that assits with testing the packages maintained at the Azure SDK for JavaScript repository. This is not intended for the public utilization.**
 

sdk/test-utils/test-credential/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 1.0.0 (#Unreleased)
+## 1.0.0 (2022-04-08)
 
 ### Features Added
 

sdk/test-utils/test-credential/README.md

@@ -1,6 +1,8 @@
 # Azure Tools - Test Credential
 
-This library provides a `TokenCredential` implementation for testing Azure SDK packages.
+**Note: This project is a test utility that assits with testing the packages maintained at the Azure SDK for JavaScript repository. This is not intended for the public utilization.**
+
+This library provides a `TokenCredential` implementation for testing Azure SDK packages. This library is supposed to be utilized along with the `@azure-tools/test-recorder` library for testing Azure SDKs.
 
 ## Getting started
 
@@ -13,6 +15,7 @@ Add this library as a dev dependency in your project.
 ## Key concepts
 
 ### Usage
+
 ```ts
 import { createTestCredential } from "@azure-tools/test-credential";