Update README.md

README.md

@@ -36,6 +36,9 @@
     - [DispatchGroup](#DispatchGroup)
     - [DispatchWorkItem](#DispatchWorkItem)
     - [Thread Sanitizer](#Thread-Sanitizer)
+- [Testing](#Testing)
+    - [Unit Test](#Unit-Test)
+    - [UI Test](#UI-Test)
 - [Useful Stuff](#Useful-Stuff)
     - [Show Preview in UIKit(Build UI with Code Base)](#show-preview-in-uikitbuild-ui-with-code-base-----)
     - [Write README.md](#write-readmemd)
@@ -360,6 +363,9 @@ struct User: Codable {
 ### Various API Site
 - [rapidAPI](https://www.rapidapi.com)
 
+## Third Party Library
+[This github](https://github.com/vsouza/awesome-ios) contains all the popular libraries in Swift:+1:
+
 ## GCD
 GCD(Grand Central Dispatch) is a low-level API for managing concurrent operations. It can help you improve your app’s responsiveness by deferring computationally expensive tasks to the background.
 
@@ -389,8 +395,11 @@ And then go to **RUN** and check **THREAD SANITIZER** 👈
 
 <img src="https://github.com/jphong1111/Useful_Swift/blob/main/Images/thread_sanitizer.png">
 
-## Third Party Library
-[This github](https://github.com/vsouza/awesome-ios) contains all the popular libraries in Swift:+1:
+## Testing
+
+### Unit Test
+
+### UI Test
 
 ## Useful Stuff