Add alternative list slurm nodes command

slurm-snippets.md

@@ -11,3 +11,9 @@ srun --pty -c 1 --mem=4G /bin/bash
 ```bash
 scontrol show nodes | awk '/NodeName/ {print $1}' | cut -d= -f2
 ```
+
+Alternative
+
+```bash
+sinfo --Node | awk '{print $1}' | tail -n+2
+```