Update README.md

README.md

@@ -21,7 +21,7 @@ Also see the [Submitting a bugs/feature request](https://github.com/FreeRTOS/Fre
 
 **Note:** All the remaining sections are generic and applies to all the versions from V3.0.0 onwards.
 
-## Upgrading to V3.0.0 and above
+## Upgrading to V3.0.0 and V3.1.0
 In version 3.0.0 or higher, the folder structure of FreeRTOS-Plus-TCP has changed and the files have been broken down into smaller logically separated modules. This change makes the code more modular and conducive to unit-tests. FreeRTOS-Plus-TCP V3.0.0 improves the robustness, security, and modularity of the library. Version 3.0.0 adds comprehensive unit test coverage for all lines and branches of code and has undergone protocol testing, and penetration testing by AWS Security to reduce the exposure to security vulnerabilities. Additionally, the source files have been moved to a `source` directory. This change requires modification of any existing project(s) to include the modified source files and directories. There are examples on how to use the new files and directory structure. For an example based on the Xilinx Zynq-7000, use the code in this [branch](https://github.com/aws/amazon-freertos/tree/TCPRefactorDemo) and follow these [instructions](https://docs.aws.amazon.com/freertos/latest/userguide/getting_started_xilinx.html) to build and run the demo.
 
 **FreeRTOS-Plus-TCP V3.1.0 [source code](https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/tree/V3.1.0)(.c .h) is part of the [FreeRTOS 202210.00 LTS](https://github.com/FreeRTOS/FreeRTOS-LTS/tree/202210.00-LTS) release.**