Include configuring laser frequency and tx power (#2437)

Update CLI examples to reflect recent changes of adding these two config CLIs.

config interface transceiver frequency
config interface transceiver tx-power

doc/Command-Reference.md

@@ -4116,6 +4116,36 @@ This command is used to enable or disable low-power mode for an SFP transceiver
   Disabling low-power mode for port Ethernet0...  OK
   ```
 
+**config interface transceiver frequency**
+
+This command is used to set the coherent module laser frequency
+
+- Usage:
+  ```
+  config interface transceiver frequency <interface_name> <frequency_value>
+  ```
+
+- Examples:
+  ```
+  user@sonic:~# config interface transceiver frequency Ethernet0 196100
+  Setting laser frequency to 196100 GHz on port Ethernet0
+  ```
+
+**config interface transceiver tx_power**
+
+This command is used to set the coherent module tx power
+
+- Usage:
+  ```
+  config interface transceiver tx_power <interface_name> <tx_power_value>
+  ```
+
+- Examples:
+  ```
+  user@sonic:~# config interface transceiver tx_power Ethernet0 -- -10.0
+  Setting target Tx output power to -10.0 dBm on port Ethernet0
+  ```
+
 **config interface transceiver reset**
 
 This command is used to reset an SFP transceiver