Update 5.1.2 - IP Classes.md

Author: grayguava

5. Network Addressing & Identity/5.1 - IP Addressing/5.1.2 - IP Classes.md

@@ -6,7 +6,7 @@
 ---
 
 
-Before [**CIDR**](https://github.com/bwbearr/Field-Notes/blob/d4d4be5c40602d487cd7197004c5987885eb5fe7/Networking/5.%20Network%20Addressing%20%26%20Identity/5.1%20-%20IP%20Addressing/5.1.7%20-%20CIDR%20(Classless%20Addressing).md) and modern [subnetting](https://github.com/bwbearr/Field-Notes/blob/d4d4be5c40602d487cd7197004c5987885eb5fe7/Networking/5.%20Network%20Addressing%20%26%20Identity/5.1%20-%20IP%20Addressing/5.1.9%20-%20Subnetting.md) came into play, IP addresses were divided into **5 classes** (A to E) — based on how big or small a network was. This was called the **Classful Addressing system**.
+Before [**CIDR**](https://github.com/orze4r/Networking-Journey/blob/main/5.%20Network%20Addressing%20%26%20Identity/5.1%20-%20IP%20Addressing/5.1.7%20-%20CIDR%20(Classless%20Addressing).md) and modern [subnetting](https://github.com/orze4r/Networking-Journey/blob/main/5.%20Network%20Addressing%20%26%20Identity/5.1%20-%20IP%20Addressing/5.1.9%20-%20Subnetting.md) came into play, IP addresses were divided into **5 classes** (A to E) — based on how big or small a network was. This was called the **Classful Addressing system**.
 
 Today, this system is **outdated**, but it’s still asked in interviews and foundational exams.
 
@@ -95,7 +95,7 @@ In IPv4, the address space was split into ranges called **classes**:
 
 Because we now use:
 
-- [**CIDR**](https://github.com/bwbearr/Field-Notes/blob/d4d4be5c40602d487cd7197004c5987885eb5fe7/Networking/5.%20Network%20Addressing%20%26%20Identity/5.1%20-%20IP%20Addressing/5.1.7%20-%20CIDR%20(Classless%20Addressing).md) → Classless Inter-Domain Routing
+- **CIDR** → Classless Inter-Domain Routing
 - **VLSM** → Variable Length Subnet Masking  
 These allow more flexible and efficient IP usage.