update CHANGELOG and create websocker-server instructions

CHANGELOG.md

@@ -9,6 +9,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added WebsocketServerTransport. This will create a websocket server and will
+  read messages coming from a client. The messages are serialized/deserialized
+  with protobufs. See `examples/websocket-server` for a detailed example.
+
 - Added function calling (LLMService.register_function()). This will allow the
   LLM to call functions you have registered when needed. For example, if you
   register a function to get the weather in Los Angeles and ask the LLM about
@@ -24,7 +28,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed an issue where `camera_out_enabled` would cause the highg CPU usage if
   no image was provided.
 
-
 ## [0.0.24] - 2024-05-29
 
 ### Added

examples/websocket-server/README.md

@@ -0,0 +1,27 @@
+# Websocket Server
+
+This is an example that shows how to use `WebsocketServerTransport` to communicate with a web client.
+
+## Get started
+
+```python
+python3 -m venv venv
+source venv/bin/activate
+pip install -r requirements.txt
+```
+
+## Run the server
+
+```bash
+python server.py
+```
+
+## Run the HTTP server
+
+This will host the static web client:
+
+```bash
+python -m http.server
+```
+
+Then, visit `http://localhost:8000` in your browser to start a session.

examples/websocket-server/requirements.txt

@@ -0,0 +1,2 @@
+python-dotenv
+pipecat-ai[openai,silero,websocket,whisper]