Update README (#180)

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

README.md

 
 ## 🌟 Key Features
  
-- 🍭 **"Quality in, quality out"**
+### 🍭 **"Quality in, quality out"**
   - Deep document understanding-based knowledge extraction from unstructured data with complicated formats.
   - Finds "needle in a data haystack" of literally unlimited tokens.
-- 🍱 **Template-based chunking**
+### 🍱 **Template-based chunking**
   - Intelligent and explainable.
   - Plenty of template options to choose from.
-- 🌱 **Grounded citations with reduced hallucinations**
+### 🌱 **Grounded citations with reduced hallucinations**
   - Visualization of text chunking to allow human intervention.
   - Quick view of the key references and traceable citations to support grounded answers.
-- 🍔 **Compatibility with heterogeneous data sources**
+### 🍔 **Compatibility with heterogeneous data sources**
   - Supports Word, slides, excel, txt, images, scanned copies, structured data, web pages, and more.
-- 🛀 **Automated and effortless RAG workflow**
+### 🛀 **Automated and effortless RAG workflow**
   - Streamlined RAG orchestration catered to both personal and large businesses.
   - Configurable LLMs as well as embedding models.
   - Multiple recall paired with fused re-ranking.
     INFO:werkzeug:Press CTRL+C to quit
     ```
 
-5. In your web browser, enter the IP address of your server as prompted and log in to RAGFlow.
+5. In your web browser, enter the IP address and port of your server as prompted and log in to RAGFlow.
    
    *The show is now on!*