Simple test command

[hoelzer]

The README already provides a simple test command. However, this could be also implemented in the Nextflow version via a test profile. Then, the user can just run

nextflow pull EBI-Metagenomics/emg-viral-pipeline
nextflow run EBI-Metagenomics/emg-viral-pipeline -r v0.4.0 -profile slurm,singularity,test

Here are some examples of such test profile implementations:

https://github.com/hoelzer-lab/rnaflow/
https://github.com/replikation/poreCov