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/slurmdbd.md

@@ -0,0 +1,20 @@
+# slurmdbd
+
+> Provides a secure enterprise-wide interface to a database for Slurm.
+> More information: <https://slurm.schedmd.com/slurmdbd.html>.
+
+- Set the daemon's nice value to the specified value, typically a negative number:
+
+`slurmdbd -n {{value}}`
+
+- Change the working directory of `slurmdbd` to the LogFile path or to `/var/tmp`:
+
+`slurmdbd -s`
+
+- Display help:
+
+`slurmdbd -h`
+
+- Display version:
+
+`slurmdbd -V`