[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Modules/hl7802/README.md

@@ -0,0 +1,21 @@
+# FreeRTOS Cellular Interface Reference Sierra Wireless HL7802
+
+## Introduction
+
+This repository provides the reference implementation as cellular module ports for [Sierra Wireless HL7802](https://www.sierrawireless.com/iot-modules/lpwa-modules/hl7802/). This repository should be used with [FreeRTOS-Cellular-Interface](https://github.com/FreeRTOS/FreeRTOS-Cellular-Interface). See [FreeRTOS-Cellular-Interface README](https://github.com/FreeRTOS/FreeRTOS-Cellular-Interface/blob/main/README.md) for more details.
+
+## Use Case
+
+There is also an use case at [MQTT_Mutual_Auth_Demo_with_HL7802](https://github.com/FreeRTOS/FreeRTOS/tree/main/FreeRTOS-Plus/Demo/FreeRTOS_Cellular_Interface_Windows_Simulator/MQTT_Mutual_Auth_Demo_with_HL7802) as a demonstration to run HL7802 with FreeRTOS Windows Simulator.
+
+## How Does Community Members to Contribute a Cellular Module Port
+
+We provide a repository, [FreeRTOS-Cellular-Interface-Community-Supported-Ports](https://github.com/FreeRTOS/FreeRTOS-Cellular-Interface-Community-Supported-Ports), for community members to contribute their modules. See [How to Contribute a Cellular Module Port](https://github.com/FreeRTOS/FreeRTOS-Cellular-Interface-Community-Supported-Ports#how-to-contribute-a-cellular-module-port) for more details.
+
+## Security
+
+See [CONTRIBUTING](CONTRIBUTING.md#security-issue-notifications) for more information.
+
+## License
+
+The FreeRTOS Cellular Interface library is distributed under MIT open source license. The code in this repository is licensed under the MIT License. See the [LICENSE](LICENSE) file.