checklist to ISMB abstract subm release

This is checklist for @vibaille and @rplanel of what needs to be done to get as of ISMB abstract submission deadline. Work branch for that is: to-final-gitlab-orga.

On the readme/doc/test data side:

• drop testdata as testdata.csv in testdata folder. Make it minimal, one pheno, at most two for safety, no covariates.
• Readme: general intro
• Readme: how to retrieve the dockers, deploy, create
• Readme: getting started: description of interface, 1st encounter, what to start with
• Readme: load pheno data
• Readme: annotate pheno data w pheno categories and controlled vocab
• Readme: plot pheno data and transform if any
• Readme : QTL mapping, the difft steps: format data, calc genoprob, scan, perm, find peaks & effects, ref regions
• Readme: more advanced command. Permissions, data deletion... All what is not worth telling as 101
• Readme: FAQ.
• for all figs in readme, hyperlink to corresponding figs to be hosted in docs/img folder

Overall/general side:

• cleanup to only have relevant dirs and files in to-final-gitlab-orga. List of (very old) things to check: .gitlab/issue_templates, classes_draft.mdj, classes_draft.png, start-docker-compose.sh
• ensure https://gitlab.pasteur.fr/cc-qtl/cc-qtl-db is publicly available
• once all is done, merge to-final-gitlab-orga to main so that all appears at https://gitlab.pasteur.fr/cc-qtl/cc-qtl-db (which is path provided in abstract)
• Readme: after merging to main, fix all hyperlinks in readme
• License file!! (oups)

... any other thing to add ?