Docs: Refactored documentation (#13340)

### What problem does this PR solve?

Refactored documentation. 

### Type of change

- [x] Documentation Update

docs/develop/launch_ragflow_from_source.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 2
+sidebar_position: 3
 slug: /launch_ragflow_from_source
 sidebar_custom_props: {
   categoryIcon: LucideMonitorPlay
@@ -90,7 +90,7 @@ docker compose -f docker/docker-compose-base.yml up -d
    ```
 
 3. **Optional:** If you cannot access HuggingFace, set the HF_ENDPOINT environment variable to use a mirror site:
- 
+
    ```bash
    export HF_ENDPOINT=https://hf-mirror.com
    ```