Improve error detection content with resources

src/data/roadmaps/server-side-game-developer/content/error-detection@vFM311xSa5OqNVove2f6j.md

@@ -0,0 +1,13 @@
+# Error Detection  
+
+**Error detection** ensures data integrity in `TCP-based` communication, preventing corrupted 
+or altered packets from disrupting server-side game interactions. `TCP` uses checksums to verify
+data integrity, detecting bit errors during transmission. If an error is found, the corrupted 
+packet is discarded, and retransmission is requested via acknowledgments (ACKs). Additional 
+mechanisms such as cyclic redundancy check (CRC) and parity checks may be used in lower 
+network layers to enhance reliability. Effective error detection minimizes data corruption 
+in multiplayer games, ensuring smooth gameplay and synchronization across players.
+
+Resources:  
+- [@article@Error Detection Code – Checksum](https://www.geeksforgeeks.org/error-detection-code-checksum/)  
+- [@article@Error Control in TCP](https://www.cisco.com/c/en/us/support/docs/ip/tcp/13733-40.html)

src/data/roadmaps/server-side-game-developer/content/flow-control@lDVD-3i64Mk7-KPJrXmFH.md

@@ -14,3 +14,4 @@ Visit the following resources to learn more:
 
 - [@article@How Flow Control is Achieved in TCP?](https://datatracker.ietf.org/doc/html/rfc5681)  
 - [@article@Flow Control vs. Congestion Control in TCP](https://www.baeldung.com/cs/tcp-flow-control-vs-congestion-control)
+- [@article@TCP Flow Control](https://www.sanfoundry.com/computer-network-tcp-flow-control/)