Fix SSOT check

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

Author: aggarg

source/interface/transport_interface.h

@@ -96,6 +96,7 @@
  * without TLS, it is typically implemented by calling the TCP layer receive
  * function. @ref TransportRecv_t may be invoked multiple times by the protocol
  * library, if fewer bytes than were requested to receive are returned.
+ * Please note that it is HIGHLY RECOMMENDED that the transport receive implementation does NOT block.
  * <br><br>
  * <b>Example code:</b>
  * @code{c}
@@ -200,6 +201,9 @@ typedef struct NetworkContext NetworkContext_t;
  * coreMQTT will continue to call the transport interface if it receives
  * a partial packet until it accumulates enough data to get the complete
  * MQTT packet.
+ * A non‐blocking implementation is also essential so that the library's inbuilt
+ * keep‐alive mechanism can work properly, given the user chooses to use
+ * that over their own keep alive mechanism.
  *
  * @param[in] pNetworkContext Implementation-defined network context.
  * @param[in] pBuffer Buffer to receive the data into.