CRAYSAT-1882: Improve "Power On Compute Cabinets"

Improve the procedure to power on compute cabinets as follows:

* Minor wording adjustments
* Note that it is safe to re-run `sat bootsys boot --stage
  cabinet-power` as needed until it's successful.
* Change CAPMC references and commands to PCS. Note that these
  instructions were taken from the document on the same name in the
  `Power_Control_Service` directory, and that copy of the procedure will
  be removed in CRAYSAT-1891.

operations/power_management/Power_On_Compute_Cabinets.md

@@ -47,23 +47,29 @@ power-on command from Cray System Management \(CSM\) software.
    sat bootsys boot --stage cabinet-power
    ```
 
-   This command first resumes the `hms-discovery` Kubernetes cronjob and waits for it to be
-   scheduled. Then, the `hms-discovery` job initiates power-on of the liquid-cooled cabinets.
-   Finally, the `sat bootsys` command waits for the components in the liquid-cooled cabinets to be
-   powered on. The `sat bootsys` command controls power only to liquid-cooled cabinets.
+   This command resumes the `hms-discovery` Kubernetes cronjob and waits for it to be scheduled.
+   Once scheduled, the `hms-discovery` job initiates power-on of the liquid-cooled cabinets, and the
+   `sat bootsys` command waits for the components in the liquid-cooled cabinets to be powered on.
+   The `sat bootsys` command only powers on liquid-cooled cabinets.
 
-   If the `hms-discovery` cronjob fails to be scheduled after it is resumed, then SAT will delete
-   and re-create the cronjob, and will wait for it to run. After the cronjob has been scheduled
-   within the time expected based on its cron schedule, execute the `sat bootsys boot --stage
-   cabinet-power` command again.
+   If the `hms-discovery` cronjob fails to be scheduled after it is resumed, then `sat bootsys` will
+   delete and re-create the cronjob and wait again for it to be scheduled. If this command fails, it is safe to run it again until it succeeds.
 
-   If `sat bootsys` fails to power on the cabinets through `hms-discovery`, then use CAPMC to manually power on the cabinet chassis,
-   compute blade slots, and all populated switch blade slots \(1, 3, 5, and 7\). This example shows cabinets 1000-1003.
+   If `sat bootsys` fails to power on the cabinets through `hms-discovery`, then components can be
+   manually powered on directly with PCS. The example below will power on the cabinet chassis,
+   compute blade slots, and all populated switch blade slots (1, 3, 5, and 7) in cabinets 1000-1003.
+   Adjust the example as needed for the system.
 
    ```bash
-   cray capmc xname_on create --xnames x[1000-1003]c[0-7] --format json
-   cray capmc xname_on create --xnames x[1000-1003]c[0-7]s[0-7] --format json
-   cray capmc xname_on create --xnames x[1000-1003]c[0-7]r[1,3,5,7] --format json
+   cray power transition on --xnames "x[1000-1003]c[0-7]" --format json
+   cray power transition on --xnames "x[1000-1003]c[0-7]s[0-7]" --format json
+   cray power transition on --xnames "x[1000-1003]c[0-7]r[1,3,5,7]" --format json
+   ```
+
+   Verify the status of each of the power operations.
+
+   ```bash
+   cray power transition describe TRANSITION_ID --format json
    ```
 
 ### Power On Standard Rack PDU Circuit Breakers