slurm*: add pages (#11133)

Author:    xuzhangheng <48378279+xuzhangheng@users.noreply.github.com>
Co-authored-by: Magrid <magrid0@proton.me>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/linux/slurmctld.md

@@ -0,0 +1,24 @@
+# slurmctld
+
+> Monitor all other Slurm daemons and resources, accept work (jobs), and allocate resources to those jobs.
+> More information: <https://slurm.schedmd.com/slurmctld.html>.
+
+- Clear all previous `slurmctld` states from its last checkpoint:
+
+`slurmctld -c`
+
+- Set the daemon's nice value to the specified value, typically a negative number:
+
+`slurmctld -n {{value}}`
+
+- Write log messages to the specified file:
+
+`slurmctld -L {{path/to/output_file}}`
+
+- Display help:
+
+`slurmctld -h`
+
+- Display version:
+
+`slurmctld -V`