added slides and commands

README.md

+## Identifying our computer
+
+```
+hostname
+```
+
+## Our first SLURM job
+
+```
+srun hostname
+```
+
+## Exploring our example program
+
+```
+cd $HOME/embl_swc_hpc/exercises
+./hpc_example.py -t 10 -l 100
+```
+
+## Running example program on on the cluster
+
+```
+srun ./hpc_example.py -t 10 -l 100
+```
+
+## Running in the background
+
+```
+srun ./hpc_example.py -t 10 -l 100 &
+```
+
+## Redirecting output
+
+```
+srun --output=output.txt ./hpc_example.py -t 20 -l 100 &
+```
+
+## Creating a larger list
+
+```
+srun --output=output.txt ./hpc_example.py -t 30 -l 5000000 &
+```
+
+## Displaying details of our cluster queue
+
+```
+scontrol show partition
+```
+
+## Requesting more resources
+
+```
+srun --mem=250 \
+--output=output.txt \
+./hpc_example.py -t 30 -l 5000000 &
+```
+
+## Running interactive jobs
+```
+srun --pty bash
+```
+
+## Interactive job with more memory
+```
+srun --mem=250 --pty bash
+```
+
+## Using `sbatch` instead
+
+```
+sbatch batch_jobs.sh
+```
+
+## Using job dependencies to build pipelines
+
+```
+jid=$(sbatch --parsable batch_job.sh)
+
+sbatch --dependency=afterok:$jid batch_job.sh
+```