revert white-space changes in docs (#12557)

### What problem does this PR solve?

Trailing white-spaces in commit 6814ace1aa
got automatically trimmed by code editor may causes documentation
typesetting broken.

Mostly for double spaces for soft line breaks.  

### Type of change

- [x] Documentation Update

docs/guides/dataset/enable_raptor.md

@@ -5,7 +5,6 @@ sidebar_custom_props: {
   categoryIcon: LucideNetwork
 }
 ---
-
 # Enable RAPTOR
 
 A recursive abstractive method used in long-context knowledge retrieval and summarization, balancing broad semantic understanding with fine details.
@@ -79,7 +78,7 @@ A random seed. Click **+** to change the seed value.
 ## Quickstart
 
 1. Navigate to the **Configuration** page of your dataset and update:
-
+   
    - Prompt: *Optional* - We recommend that you keep it as-is until you understand the mechanism behind.
    - Max token: *Optional*
    - Threshold: *Optional*
@@ -89,8 +88,8 @@ A random seed. Click **+** to change the seed value.
 
    *You can click the pause button in the dropdown to halt the build process when necessary.*
 
-3. Go back to the **Configuration** page:
-
+3. Go back to the **Configuration** page:  
+   
    *The **RAPTOR** field changes from `Not generated` to `Generated at a specific timestamp` when a RAPTOR hierarchical tree structure is generated. You can delete it by clicking the recycle bin button to the right of the field.*
 
 4. Once a RAPTOR hierarchical tree structure is generated, your chat assistant and **Retrieval** agent component will use it for retrieval as a default.