docs(ssh): Added documentation for ssh config

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

scripts/README.md

@@ -17,7 +17,7 @@ as it will freeze up when you try to run two switch programs.
   - 2x Server with each 4 usable SFP+ Ports
 - Software
   - Barefoot SDE
-  - SSH config for nodes
+  - SSH config for nodes (as seen in the appendix)
 
 ## Setup and Usage
 
@@ -308,3 +308,25 @@ ip netns exec "$NS" arp -i "$IF" -s 10.0.3.4 00:00:00:00:00:04
 ```
 
 Replace the placeholder mac address with the actual MAC addresses of the interfaces.
+
+### ssh_config
+
+```config
+Host ncs-node1 ncs-node2 ncss-head
+    User tuan-dat.tran
+    IdentityFile /path/to/privatekey
+
+Host ncs-head
+    HostName 130.75.73.1
+    Port 30022
+
+Host ncs-node1
+    HostName 192.168.1.101
+    Port 22
+    ProxyJump ncs-head
+
+Host ncs-node2
+    HostName 192.168.1.102
+    Port 22
+    ProxyJump ncs-head
+```