Make the landing page more readable
@brief The AWS IoT Device SDK for Embedded C provides demonstration code and integration tests for a collection of libraries.
@section libraries_section Libraries
-The following libraries are part of this SDK:
-- [coreMQTT](@ref mqtt)
-- [device-shadow-for-aws-iot-embedded-sdk](@ref shadow)
-- [coreJSON](@ref json)
+The following libraries (along with their source repositories) are part of this SDK:
+- [MQTT client](@ref mqtt) - [coreMQTT](https://github.com/FreeRTOS/coreMQTT)
+- [AWS IoT Device Shadow client](@ref shadow) - [device-shadow-for-aws-iot-embedded-sdk](https://github.com/aws/device-shadow-for-aws-iot-embedded-sdk)
+- [JSON parser](@ref json) - [coreJSON](https://github.com/FreeRTOS/coreJSON)
*/
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