Update CameraShield note #20

Job	Run time
build (examples/UnitTestExample)	1m 5s
build (examples/ETHOTA)	1m 4s
build (examples/HelloServer)	58s
build (examples/MQTTClient)	57s
build (examples/ESPMQTTSClient)	1m 4s
build (examples/StaticIPAddress)	1m 1s
build (examples/UDPClientReceiver)	1m 2s
build (examples/UDPClientSender)	59s
build (examples/UDPClientReceiverDirectPC)	58s
build (examples/UDPClientSenderDirectPC)	1m 4s
build (examples/AsyncUDPServer)	58s
build (examples/AsyncUDPClient)	58s
build (examples/WebSocketClient)	1m 4s
build (examples/WebSocketServer)	47s
build (examples/TCPClient)	1m 3s
build (examples/TCPServer)	1m 6s
build (examples/RS485_Master)	58s
build (examples/RS485_Slave)	1m 0s
build (examples/RS485_ModBUS)	1m 0s
build (examples/TFT_ILI9341_Shield)	1m 2s
build (examples/SPI_Wire_DevicesExample)	59s
build (examples/WireExample)	48s
	21m 55s

Provide feedback