DOCS: amend docker image building page and more hints for mac users (#5461)

### What problem does this PR solve?

Amend docker image building page and more hints for mac users

### Type of change

- [x] Documentation Update

docs/guides/develop/build_docker_image.mdx

@@ -42,6 +42,8 @@ While we also test RAGFlow on ARM64 platforms, we do not maintain RAGFlow Docker
 ```bash
 git clone https://github.com/infiniflow/ragflow.git
 cd ragflow/
+uv run download_deps.py
+docker build -f Dockerfile.deps -t infiniflow/ragflow_deps .
 docker build --build-arg LIGHTEN=1 -f Dockerfile -t infiniflow/ragflow:nightly-slim .
 ```
 
@@ -61,8 +63,38 @@ cd ragflow/
 uv run download_deps.py
 docker build -f Dockerfile.deps -t infiniflow/ragflow_deps .
 docker build -f Dockerfile -t infiniflow/ragflow:nightly .
-docker build --build-arg LIGHTEN=1 -f Dockerfile -t infiniflow/ragflow:nightly-slim .
 ```
 
   </TabItem>
 </Tabs>
+
+## Launch a RAGFlow Service from Docker for MacOS
+
+After building the infiniflow/ragflow:nightly-slim image, you are ready to launch a fully-functional RAGFlow service with all the required components, such as Elasticsearch, MySQL, MinIO, Redis, and more.
+
+## Example: Apple M2 Pro (Sequoia)
+
+1. Edit Docker Compose Configuration
+
+Open the `docker/docker-compose-base.yml` file. Find the `infinity.image` setting and change the image reference from `infiniflow/infinity:v0.6.0-dev3` to `infiniflow/ragflow:nightly-slim` to use the pre-built image.
+
+```yaml
+infinity:
+  container_name: ragflow-infinity
+  image: infiniflow/ragflow:nightly-slim # here
+  volumes:
+    - ...
+    - ...
+  ...
+```
+
+2. Launch the Service
+
+```bash
+cd docker
+$ docker compose -f docker-compose-macos.yml up -d
+```
+
+3. Access the RAGFlow Service
+
+Once the setup is complete, open your web browser and navigate to http://127.0.0.1 or your server's \<IP_ADDRESS\>; (the default port is \<PORT\> = 80). You will be directed to the RAGFlow welcome page. Enjoy!🍻