Screenshot of slurm-script-mode
updated screenshot
Imported branch gh-pages from https://github.com/ffevotte/slurm.el.git
Added `slurm.el` screenshots
Merge branch 'gh-pages' of https://github.com/ffevotte/slurm-helper
avoid dangling links to Emacs screenshots in the README.md file.
Merge branch 'master' of https://github.com/damienfrancois/slurm-helper