update

README.md

@@ -11,17 +11,17 @@ Using either Markdown or Programmatically to generate directory trees🌳 and di
 Provide CLI, Golang library and Web.
 
 # Table of Contents
-- **[Acknowledgments](https://github.com/ddddddO/gtree?tab=readme-ov-file#acknowledgments)**
-- Features
-	- **[Web](https://github.com/ddddddO/gtree?tab=readme-ov-file#web)**
-	- **[CLI](https://github.com/ddddddO/gtree?tab=readme-ov-file#cli)**
-	- Library
-		- **[Used in Web and CLI](https://github.com/ddddddO/gtree?tab=readme-ov-file#library---used-in-web-and-cli)**
-		- **[Programmable tree structure](https://github.com/ddddddO/gtree?tab=readme-ov-file#library---programmable-tree-structure)** 👈Recommended for developers!
-- [Documents](https://github.com/ddddddO/gtree?tab=readme-ov-file#documents)
-- [Process](https://github.com/ddddddO/gtree?tab=readme-ov-file#process)
-- [Performance](https://github.com/ddddddO/gtree?tab=readme-ov-file#performance)
-- [Test coverage](https://github.com/ddddddO/gtree?tab=readme-ov-file#test-coverage)
+### **[Acknowledgments](https://github.com/ddddddO/gtree?tab=readme-ov-file#acknowledgments)**
+### Features
+##### **[Web](https://github.com/ddddddO/gtree?tab=readme-ov-file#web)**
+##### **[CLI](https://github.com/ddddddO/gtree?tab=readme-ov-file#cli)**
+##### Library
+- **[Used in Web and CLI](https://github.com/ddddddO/gtree?tab=readme-ov-file#library---used-in-web-and-cli)**
+- **[Programmable tree structure](https://github.com/ddddddO/gtree?tab=readme-ov-file#library---programmable-tree-structure)** 👈Recommended for developers!
+### [Documents](https://github.com/ddddddO/gtree?tab=readme-ov-file#documents)
+### [Process](https://github.com/ddddddO/gtree?tab=readme-ov-file#process)
+### [Performance](https://github.com/ddddddO/gtree?tab=readme-ov-file#performance)
+### [Test coverage](https://github.com/ddddddO/gtree?tab=readme-ov-file#test-coverage)
 
 # Acknowledgments
 Thanks for providing very useful CLI for cloud storage tree output🤩🎉</br>