note the requirement for consistent slurm.conf values across the cluster

doc/man/man5/slurm.conf.5

@@ -5,7 +5,8 @@ slurm.conf \- Slurm configuration file
 \fB/etc/slurm.conf\fP is an ASCII file which describes general SLURM
 configuration information, the nodes to be managed, information about
 how those nodes are grouped into partitions, and various scheduling
-parameters associated with those partitions.
+parameters associated with those partitions. This file should be
+consistent across all nodes in the cluster.
 .LP
 The file location can be modified at system build time using the
 DEFAULT_SLURM_CONF parameter. In addition, you can use the