[Perfstress] Update test proxy URL in docs (#19807)

* Updated perftest writting guide

* Full url

doc/dev/perfstress_tests.md

@@ -2,7 +2,7 @@
 1. [The perfstress framework](#the-perfstress-framework)
     - [The PerfStressTest base](#the-perfstresstest-base)
     - [Default command options](#default-command-options)
-    - [Running with test proxy](#running-with-test-proxy)
+    - [Running with test proxy](#running-with-the-test-proxy)
 2. [Adding performance tests to an SDK](#adding-performance-tests-to-an-sdk)
     - [Writing a test](#writing-a-test)
     - [Adding legacy T1 tests](#adding-legacy-t1-tests)
@@ -88,7 +88,7 @@ The framework has a series of common command line options built in:
 
 ## Running with the test proxy
 Follow the instructions here to install and run the test proxy server:
-https://github.com/Azure/azure-sdk-tools/tree/feature/http-recording-server/tools/test-proxy/Azure.Sdk.Tools.TestProxy
+https://github.com/Azure/azure-sdk-tools/tree/main/tools/test-proxy/Azure.Sdk.Tools.TestProxy
 
 Once running, in a separate process run the perf test in question, combined with the `-x` flag to specify the proxy endpoint.
 ```cmd
@@ -375,4 +375,4 @@ Using the `perfstress` command alone will list the available perf tests found. N
 Please add a `README.md` to the perfstress_tests directory so that others know how to setup and run the perf tests, along with a description of the available tests and any support command line options. README files in a `tests/perfstress_tests` directory should already be filtered from CI validation for SDK readmes.
 Some examples can be found here:
 - [Azure Storage Blob](https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/storage/azure-storage-blob/tests/perfstress_tests/README.md)
-- [Azure Service Bus](https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/servicebus/azure-servicebus/tests/perf_tests/README.md)
+- [Azure Service Bus](https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/servicebus/azure-servicebus/tests/perf_tests/README.md)