update the instruction to load existing data via docker (#255)

docs/pages/index.mdx

@@ -144,13 +144,18 @@ or manual setup:
       <AccordionItem value="item-1">
         <AccordionTrigger>Docker is my thing.</AccordionTrigger>
         <AccordionContent>
-        Please follow the [instruction](https://redis.io/docs/stack/get-started/install/docker/) to start a redis-stack server or use an existing server. You can also check [Q&A](/docs/troubleshooting.md) to initiate the redis server with the Sotopia data.
+        Please follow the [instruction](https://redis.io/docs/stack/get-started/install/docker/) to start a redis-stack server or use an existing server. If you want to use the existing data in Sotopia, you can download the `dump.rdb` file from [here](https://cmu.box.com/shared/static/xiivc5z8rnmi1zr6vmk1ohxslylvynur). Feel free to check more datasets related to Sotopia [here](https://huggingface.co/collections/cmu-lti/sotopia-65f312c1bd04a8c4a9225e5b).
+
+        After downloading the `dump.rdb` file, make a `redis-data` folder in an desired {your_path} directory. And then you can start the server with the following command:
+        ```bash
+        docker run -d --name redis-stack -p 6379:6379 -p 8001:8001 -v {your_path}/redis-data:/data/ redis/redis-stack:latest
+        ```
 
         The `REDIS_OM_URL` need to be set before loading and saving agents:
         ```bash
         conda env config vars set REDIS_OM_URL="redis://user:password@host:port"
         ```
-        </AccordionContent>
+      </AccordionContent>
       </AccordionItem>
       <AccordionItem value="item-2">
         <AccordionTrigger>No, I don't want to use Docker.</AccordionTrigger>