Updated v0.18.0 release notes (#7221)

### What problem does this PR solve?


### Type of change


- [x] Documentation Update

docs/develop/mcp.md

@@ -1,12 +1,11 @@
-______________________________________________________________________
 ---
 sidebar_position: 4
 slug: /mcp_server
 ---
 
-# Overview of RAGFlow Model Context Protocol (MCP) Server
+# RAGFlow MCP server overview
 
-The RAGFlow MCP server operates as an independent component that complements the RAGFlow server. However, it requires a RAGFlow server to work functionally well, meaning, the MCP client and server communicate with each other in MCP HTTP+SSE mode (once the connection is established, server pushes messages to client only), and responses are expected from RAGFlow server.
+The RAGFlow Model Context Protocol (MCP) server operates as an independent component that complements the RAGFlow server. However, it requires a RAGFlow server to work functionally well, meaning, the MCP client and server communicate with each other in MCP HTTP+SSE mode (once the connection is established, server pushes messages to client only), and responses are expected from RAGFlow server.
 
 The MCP server currently offers a specific tool to assist users in searching for relevant information powered by RAGFlow DeepDoc technology:
 

docs/guides/agent/agent_component_reference/begin.mdx

@@ -49,7 +49,7 @@ You can set global variables within the **Begin** component, which can be either
 :::tip NOTE
 To pass in parameters from a client, call:
 - HTTP method [Converse with agent](../../../references/http_api_reference.md#converse-with-agent), or
-- Python method [Converse with agent](../../../referencespython_api_reference.md#converse-with-agent).
+- Python method [Converse with agent](../../../references/python_api_reference.md#converse-with-agent).
 :::
 
 :::danger IMPORTANT

docs/release_notes.md

@@ -9,7 +9,7 @@ Key features, improvements and bug fixes in the latest releases.
 
 ## v0.18.0
 
-Released on April 22, 2025.
+Released on April 23, 2025.
 
 ### New features
 
@@ -25,6 +25,14 @@ Released on April 22, 2025.
 - Enhanced answer referencing: Citation accuracy in generated responses is improved.
 - Enhanced question-answering experience: users can now manually stop streaming output during a conversation.
 
+### Documentation
+
+#### Added documents
+
+- [Set page rank](./guides/dataset/set_page_rank.md)
+- [Enable RAPTOR](./guides/dataset/enable_raptor.md)
+- [RAGFlow MCP server overview](./develop/mcp.md)
+
 ## v0.17.2
 
 Released on March 13, 2025.