add chatbot-ui example

examples/README.md

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+# Examples
+
+Here is a list of projects that can easily be integrated with the LocalAI backend. 
+
+## Projects
+
+- [chatbot-ui](https://github.com/go-skynet/LocalAI/tree/master/examples/chatbot-ui/) (by [@mkellerman](https://github.com/mkellerman))
+
+## Want to contribute?
+
+Create an issue, and put `Example: <description>` in the title! We will post your examples here.

examples/chatbot-ui/README.md

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+# chatbot-ui
+
+
+## Setup
+- Set the `services > api > volumes` parameter in the docker-compose.yaml file. This should point to your local folder with your models.
+- Copy/Rename your model file to `gpt-3.5-turbo` (without any .bin file extension).
+- Type `docker compose up` to run the api and the Web UI.
+- Open http://localhost:3000 for the Web UI.
+
+
+## Known issues
+- Can't select the model from the UI. Seems hardcoded to `gpt-3.5-turbo`.
+- If your machine is slow, the UI will timeout on the request to the API.
+
+
+### Links
+
+- [mckaywrigley/chatbot-ui](https://github.com/mckaywrigley/chatbot-ui)

examples/chatbot-ui/docker-compose.yaml

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+version: '3.6'
+
+services:
+  api:
+    image: quay.io/go-skynet/local-ai:latest
+    ports:
+      - 8080:8080
+    environment:
+      - THREADS=4
+      - CONTEXT_SIZE=512
+      - DEBUG=true
+      - MODELS_PATH=/models
+    volumes:
+      - ./models:/models:cached
+    command: ["/usr/bin/local-ai" ]
+
+  chatgpt:
+    image: ghcr.io/mckaywrigley/chatbot-ui:main
+    ports:
+      - 3000:3000
+    environment:
+      - 'OPENAI_API_KEY=sk-XXXXXXXXXXXXXXXXXXXX'
+      - 'OPENAI_API_HOST=http://host.docker.internal:8080'