Update README.md - include mention of Web Speech API (#27060)

### Packages impacted by this PR
@azure/openai

### Issues associated with this PR


### Describe the problem that is addressed by this PR
Better description in readme for sample

### What are the possible designs available to address the problem? If
there are more than one possible design, why was the one in this PR
chosen?


### Are there test cases added in this PR? _(If not, why?)_


### Provide a list of related PRs _(if any)_


### Command used to generate this PR:**_(Applicable only to SDK release
request PRs)_

### Checklists
- [ ] Added impacted package name to the issue description
- [ ] Does this PR needs any fixes in the SDK Generator?** _(If so,
create an Issue in the
[Autorest/typescript](https://github.com/Azure/autorest.typescript)
repository and link it here)_
- [ ] Added a changelog (if necessary)

sdk/openai/openai/samples/cookbook/speechToSpeechChat/README.md

@@ -1,4 +1,4 @@
-This is a browser page demonstrating speech to speech chat implementation using the Azure OpenAI JS SDK and Azure JS Speech SDK.
+This is a browser page demonstrating speech to speech chat implementation using the Azure OpenAI JS SDK and [Azure JS Speech SDK](https://github.com/microsoft/cognitive-services-speech-sdk-js) (or optionally the [Web Speech API](https://developer.mozilla.org/docs/Web/API/Web_Speech_API)).
 
 To run:
 1.