Add resources to ARP and RARP (kamranahmedse#8771)

Added 2 helpful videos explaining ARP and Ethernet to the relevant section

Author: borsos-ilo

src/data/roadmaps/linux/content/networking/ethernet-arp-rarp.md

@@ -6,4 +6,9 @@ Linux serves as a prevalent OS choice for networking due to its robust, customiz
 - ARP: As per its name, it provides address resolution, translating IP addresses into MAC (Media Access Control) addresses, facilitating more direct network communication.
 - RARP: It is the Reverse Address Resolution Protocol, working in the opposite way to ARP. It converts MAC addresses into IP addresses, which is useful in scenarios when a computer knows its MAC address but needs to find out its IP address.
 
-Knowledge of these components is indispensable in diagnosing and managing networking issues in Linux.
+Knowledge of these components is indispensable in diagnosing and managing networking issues in Linux.
+
+Visit the following resources to learn more:
+
+- [@video@ARP Explained - Address Resolution Protocol](https://www.youtube.com/watch?v=cn8Zxh9bPio)
+- [@video@What is Ethernet?](https://www.youtube.com/watch?v=HLziLmaYsO0)