Update slurmtopbs.md

docs.it4i/general/slurmtopbs.md

-# Migrating From Slurm
+# Migrating From SLURM
 
 SLURM-optimized parallel jobs will not under PBS out of the box.
 Conversion to PBS standards is necessary. Here we provide hints on how to proceed.
@@ -12,7 +12,7 @@ The `PBS_O_WORKDIR` returns the directory, where the `qsub` command was submitte
 The `PBS_JOBID` returns the numercal identifyer of the job.
 The `qsub` always starts execution in the `$HOME` directory.
 
-## Migrating PyTorch from SLURM
+## Migrating PyTorch From SLURM
 
 The Intel MPI provides some useful variables that may be used in the scripts executed via the MPI.
 these include `PMI_RANK`,`PMI_SIZE` and `MPI_LOCALRANKID`.
@@ -21,6 +21,7 @@ these include `PMI_RANK`,`PMI_SIZE` and `MPI_LOCALRANKID`.
 - The `PMI_SIZE` returns the process rank within the MPI_COMM_WORLD communicator - the number of processes
 
 For example:
+
 ```
 $ mpirun -n 4 /bin/bash -c 'echo $PMI_SIZE'
 4
@@ -28,6 +29,7 @@ $ mpirun -n 4 /bin/bash -c 'echo $PMI_SIZE'
 4
 4
 ```
+
 In typical multi-gpu multi-node setting using PyTorch one needs to know:
 
 - World-size - i.e. the total number of GPUs in the system