docs: Update Link to Papers & Qlib (#253)

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

Author: you-n-g

README.md

@@ -1,8 +1,8 @@
-<h2 align="center">
+<h3 align="center">
   <img src="docs/_static/logo.png" alt="RA-Agent logo" style="width:70%; ">
-
-  <a href="https://rdagent.azurewebsites.net">🖥️ Live Demo</a> | <a href="https://rdagent.azurewebsites.net/factor_loop">🎥 Demo Video</a>  | <a href="https://rdagent.readthedocs.io/en/latest/index.html">📖 Documentation</a>
-</h2>
+  
+  <a href="https://rdagent.azurewebsites.net" target="_blank">🖥️ Live Demo</a> | <a href="https://rdagent.azurewebsites.net/factor_loop" target="_blank">🎥 Demo Video</a>  | <a href="https://rdagent.readthedocs.io/en/latest/index.html" target="_blank">📖 Documentation</a> | <a href="#-paperwork-list"> 📃 Papers </a>
+</h3>
 
 [![CI](https://github.com/microsoft/RD-Agent/actions/workflows/ci.yml/badge.svg)](https://github.com/microsoft/RD-Agent/actions/workflows/ci.yml)
 [![CodeQL](https://github.com/microsoft/RD-Agent/actions/workflows/github-code-scanning/codeql/badge.svg)](https://github.com/microsoft/RD-Agent/actions/workflows/github-code-scanning/codeql)
@@ -90,12 +90,12 @@ Users must ensure Docker is installed before attempting most scenarios. Please r
 
 The **[🖥️ Live Demo](https://rdagent.azurewebsites.net/)** is implemented by the following commands(each item represents one demo, you can select the one you prefer):
 
-- Run the **Automated Quantitative Trading & Iterative Factors Evolution**:  Qlib self-loop factor proposal and implementation application
+- Run the **Automated Quantitative Trading & Iterative Factors Evolution**:  [Qlib](http://github.com/microsoft/qlib) self-loop factor proposal and implementation application
   ```sh
   rdagent fin_factor
   ```
 
-- Run the **Automated Quantitative Trading & Iterative Model Evolution**: Qlib self-loop model proposal and implementation application
+- Run the **Automated Quantitative Trading & Iterative Model Evolution**: [Qlib](http://github.com/microsoft/qlib) self-loop model proposal and implementation application
   ```sh
   rdagent fin_model
   ```
@@ -113,7 +113,7 @@ The **[🖥️ Live Demo](https://rdagent.azurewebsites.net/)** is implemented b
   rdagent med_model
   ```
 
-- Run the **Automated Quantitative Trading & Factors Extraction from Financial Reports**:  Run the Qlib factor extraction and implementation application based on financial reports
+- Run the **Automated Quantitative Trading & Factors Extraction from Financial Reports**:  Run the [Qlib](http://github.com/microsoft/qlib) factor extraction and implementation application based on financial reports
   ```sh
   # 1. Generally, you can run this scenario using the following command:
   rdagent fin_factor_report --report_folder=<Your financial reports folder path>