WIP: add openhpc_directories

Author: sjpb

README.md

@@ -48,6 +48,8 @@ Note slurm's ["configless" mode](https://slurm.schedmd.com/configless_slurm.html
 
 `openhpc_module_system_install`: Optional, default true. Whether or not to install an environment module system. If true, lmod will be installed. If false, You can either supply your own module system or go without one.
 
+`openhpc_directories`: TODO
+
 ### slurm.conf
 
 `openhpc_cluster_name`: Required, name of the cluster.