Guidelines authors

[astamm]

A first draft for the guidelines for authors page.

[astamm]

Next steps:

• Add guidelines for handling dependencies in Python and Julia;
• Improve explanations of the use of setup-env-ci.sh and setup-render-ci.sh files;
• Use shortcode {{< include guidelines-authors.qmd >}} in template repos to have the same guidelines propagated into the README of the templates;
• Rework “Submit” tab;
• A pass at example template contents ?
• Remove “How to automatically publish the HTML of my contribution to a website?” From the FAQ ?

[NelleV]

Merci !