fix: Fix Twitter bookmarks anchor link (#140)

* fix: Fix Twitter bookmarks anchor link

- Convert Twitter Bookmarks from collapsible details to proper header
- Update internal link to match new anchor format
- Ensures external links to #twitter-bookmarks-your-personal-tweet-library work correctly

Fixes broken link: https://github.com/yichuan-w/LEANN?tab=readme-ov-file#twitter-bookmarks-your-personal-tweet-library

* fix: Fix Slack messages anchor link as well

- Convert Slack Messages from collapsible details to proper header
- Update internal link to match new anchor format
- Ensures external links to #slack-messages-search-your-team-conversations work correctly

Both Twitter and Slack MCP sections now have reliable anchor links.

* fix: Point Slack and Twitter links to main MCP section

- Both Slack and Twitter are subsections under MCP Integration
- Links should point to #mcp-integration-rag-on-live-data-from-any-platform
- Users will land on the MCP section and can find both Slack and Twitter subsections there

This matches the actual document structure where Slack and Twitter are under the MCP Integration section.

README.md

@@ -20,7 +20,7 @@ LEANN is an innovative vector database that democratizes personal AI. Transform
 
 LEANN achieves this through *graph-based selective recomputation* with *high-degree preserving pruning*, computing embeddings on-demand instead of storing them all. [Illustration Fig →](#️-architecture--how-it-works) | [Paper →](https://arxiv.org/abs/2506.08276)
 
-**Ready to RAG Everything?** Transform your laptop into a personal AI assistant that can semantic search your **[file system](#-personal-data-manager-process-any-documents-pdf-txt-md)**, **[emails](#-your-personal-email-secretary-rag-on-apple-mail)**, **[browser history](#-time-machine-for-the-web-rag-your-entire-browser-history)**, **[chat history](#-wechat-detective-unlock-your-golden-memories)** ([WeChat](#-wechat-detective-unlock-your-golden-memories), [iMessage](#-imessage-history-your-personal-conversation-archive)), **[agent memory](#-chatgpt-chat-history-your-personal-ai-conversation-archive)** ([ChatGPT](#-chatgpt-chat-history-your-personal-ai-conversation-archive), [Claude](#-claude-chat-history-your-personal-ai-conversation-archive)), **[live data](#mcp-integration-rag-on-live-data-from-any-platform)** ([Slack](#slack-messages-search-your-team-conversations), [Twitter](#twitter-bookmarks-your-personal-tweet-library)), **[codebase](#-claude-code-integration-transform-your-development-workflow)**\* , or external knowledge bases (i.e., 60M documents) - all on your laptop, with zero cloud costs and complete privacy.
+**Ready to RAG Everything?** Transform your laptop into a personal AI assistant that can semantic search your **[file system](#-personal-data-manager-process-any-documents-pdf-txt-md)**, **[emails](#-your-personal-email-secretary-rag-on-apple-mail)**, **[browser history](#-time-machine-for-the-web-rag-your-entire-browser-history)**, **[chat history](#-wechat-detective-unlock-your-golden-memories)** ([WeChat](#-wechat-detective-unlock-your-golden-memories), [iMessage](#-imessage-history-your-personal-conversation-archive)), **[agent memory](#-chatgpt-chat-history-your-personal-ai-conversation-archive)** ([ChatGPT](#-chatgpt-chat-history-your-personal-ai-conversation-archive), [Claude](#-claude-chat-history-your-personal-ai-conversation-archive)), **[live data](#mcp-integration-rag-on-live-data-from-any-platform)** ([Slack](#mcp-integration-rag-on-live-data-from-any-platform), [Twitter](#mcp-integration-rag-on-live-data-from-any-platform)), **[codebase](#-claude-code-integration-transform-your-development-workflow)**\* , or external knowledge bases (i.e., 60M documents) - all on your laptop, with zero cloud costs and complete privacy.
 
 
 \* Claude Code only supports basic `grep`-style keyword search. **LEANN** is a drop-in **semantic search MCP service fully compatible with Claude Code**, unlocking intelligent retrieval without changing your workflow. 🔥 Check out [the easy setup →](packages/leann-mcp/README.md)
@@ -785,8 +785,7 @@ Once your iMessage conversations are indexed, you can search with queries like:
 - **Easy Extension**: Add new platforms with minimal code
 - **Secure Access**: MCP servers handle authentication
 
-<details>
+#### 💬 Slack Messages: Search Your Team Conversations
-<summary><strong>Slack Messages: Search Your Team Conversations</strong></summary>
 
 Transform your Slack workspace into a searchable knowledge base! Find discussions, decisions, and shared knowledge across all your channels.
 
@@ -822,10 +821,7 @@ python -m apps.slack_rag \
 - `--concatenate-conversations`: Group messages by channel (default: true)
 - `--max-messages-per-channel`: Limit messages per channel (default: 100)
 
-</details>
+#### 🐦 Twitter Bookmarks: Your Personal Tweet Library
-
-<details>
-<summary><strong>Twitter Bookmarks: Your Personal Tweet Library</strong></summary>
 
 Search through your Twitter bookmarks! Find that perfect article, thread, or insight you saved for later.
 
@@ -879,8 +875,6 @@ python -m apps.twitter_rag \
 - "Show me bookmarked threads about startup advice"
 - "What Python tutorials did I save?"
 
-</details>
-
 <details>
 <summary><strong>🔧 Using MCP with CLI Commands</strong></summary>