Update License to MIT and add use case in README.

LICENSE

@@ -1,15 +1,21 @@
-Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+MIT License
 
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so.
+Copyright (c) 2022 Amazon.com, Inc. or its affiliates
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,9 +1,13 @@
-# FreeRTOS Cellular Interface Reference Implementation U-Blox Sara-R4
+# FreeRTOS Cellular Interface Reference U-Blox Sara-R4
 
 ## Introduction
 
 This repository provides the reference implementation as cellular module ports for [U-Blox Sara-R4](https://www.u-blox.com/en/product/sara-r4-series). 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_SARA_R4](https://github.com/FreeRTOS/FreeRTOS/tree/main/FreeRTOS-Plus/Demo/FreeRTOS_Cellular_Interface_Windows_Simulator/MQTT_Mutual_Auth_Demo_with_SARA_R4) as a demonstration to run BG96 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.
@@ -14,4 +18,4 @@ See [CONTRIBUTING](CONTRIBUTING.md#security-issue-notifications) for more inform
 
 ## License
 
-This library is licensed under the MIT-0 License. See the [LICENSE](https://github.com/FreeRTOS/freertos-cellular-interface-reference-implementation-ublox-sara-r4/blob/main/LICENSE) file.
+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](https://github.com/FreeRTOS/FreeRTOS-Cellular-Interface-Reference-ublox-SARA-R4/blob/main/LICENSE) file.