Update content/learn/05.communication/07.modbus/modbus.md

Author: jhansson-ard

content/learn/05.communication/07.modbus/modbus.md

@@ -63,7 +63,7 @@ Two bytes are added to the end of every Modbus message for error detection and e
 The Modbus specification doesn't define exactly how the data is stored in the registers. Therefore, some manufacturers implemented Modbus in their equipment to store and transmit the higher byte first followed by the lower byte. Alternatively, others store and transmit the lower byte first. Similarly, when registers are combined to represent 32-bit data types, some devices store the higher 16 bits (high word) in the first register and the remaining low word in the second while others do the opposite. It doesn't matter which order the bytes or words are sent in, as long as the receiving device knows which way to expect it. ([Schneider Eletric, 2022](https://www.se.com/us/en/faqs/FA168406/#:~:text=What%20is%20byte%20and%20word%20ordering%3F))
 
 ## Use Modbus with Arduino
-Now that you have learned about the basics and functionalities of Modbus, it is time to talk about how you can use your Arduino to establish Modbus communication across devices. You can use your Arduino either as a controller or as a peripheral device depending on the setup. To make your life easier you can use the [Arduino Modbus library](https://www.arduino.cc/reference/en/libraries/arduinomodbus/) which allows you to implement the Modbus protocol over two different types of transport: serial communication over RS485 with RTU or Ethernet and WiFi communication using the TCP protocol. Because the Modbus library is dependent on the [RS-485 library](https://www.arduino.cc/reference/en/libraries/arduinors485/), you must include both of them in your code.
+Now that you have learned about the basics and functionalities of Modbus, it is time to talk about how you can use your Arduino to establish Modbus communication across devices. You can use your Arduino either as a controller or as a peripheral device depending on the setup. To make your life easier you can use the [Arduino Modbus library](https://www.arduino.cc/reference/en/libraries/arduinomodbus/) which allows you to implement the Modbus protocol over two different types of transport: serial communication over RS485 with RTU or Ethernet and Wi-Fi communication using the TCP protocol. Because the Modbus library is dependent on the [RS-485 library](https://www.arduino.cc/reference/en/libraries/arduinors485/), you must include both of them in your code.
 
 A lot of Arduino boards are Modbus compatible especially if you consider Ethernet-type messages. In case you want to communicate via RS-485, [MKR 485 Shields](https://store-usa.arduino.cc/products/arduino-mkr-485-shield) will help you convert any MKR board into a Modbus compatible device. Check out [this tutorial](https://docs.arduino.cc/tutorials/mkr-485-shield/mkr-485-communication) to learn more about sending data between two [MKR 485 Shields](https://store-usa.arduino.cc/products/arduino-mkr-485-shield).