Add ai policy contributing.md

[virgile-dev]

Purpose

Revamped the contributing.md and added and AI policy so we can welcome contribution more easily.

Proposal

• revamped contributing.md
• revamped PR template

External contributions

Thank you for your contribution! 🎉

Please ensure the following items are checked before submitting your pull request:

• I have read and followed the contributing guidelines
• I have read and agreed to the Code of Conduct
• I have signed off my commits with git commit --signoff (DCO compliance)
• [ x I have signed my commits with my SSH or GPG key (git commit -S)
• My commit messages follow the required format: <gitmoji>(type) title description
• I have added a changelog entry under ## [Unreleased] section (if noticeable change)
• I have added corresponding tests for new features or bug fixes (if applicable)

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Actionable comments posted: 3

🧹 Nitpick comments (2)

.github/PULL_REQUEST_TEMPLATE.md (1)

34-34: Minor wording consistency tweak: use sentence case in skip note.

For consistency with Line 20, consider *Skip if you didn't use AI for your contribution*.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In @.github/PULL_REQUEST_TEMPLATE.md at line 34, Update the template note "*Skip
If you didn't use AI for your contribution*" to sentence case so it reads "*Skip
if you didn't use AI for your contribution*" to match the style used elsewhere
(see the similar line at Line 20); modify the literal string in the file to
replace "If" with "if".

CONTRIBUTING.md (1)

38-38: Use descriptive link text to improve readability/accessibility.

Both links use vague text (here, here) and trigger markdownlint MD059.

♻️ Proposed patch

-We have dedicated labels for design work, the way we use them is described [here](https://docs.numerique.gouv.fr/docs/2d5cf334-1d0b-402f-a8bd-3f12b4cba0ce/).
+We have dedicated labels for design work, described in the [design labels guide](https://docs.numerique.gouv.fr/docs/2d5cf334-1d0b-402f-a8bd-3f12b4cba0ce/).

-* <**gitmoji**>: Use a gitmoji to represent the purpose of the commit. For example, ✨ for adding a new feature or 🔥 for removing something, see the list [here](https://gitmoji.dev/).
+* <**gitmoji**>: Use a gitmoji to represent the purpose of the commit. For example, ✨ for adding a new feature or 🔥 for removing something, see the [gitmoji reference](https://gitmoji.dev/).

Also applies to: 106-106

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@CONTRIBUTING.md` at line 38, Replace the vague link text "here" in the
sentence "We have dedicated labels for design work, the way we use them is
described [here](...)." with a descriptive label such as "design label usage
guide" (or similar) so link text is meaningful and fixes markdownlint MD059;
update both occurrences (lines referenced by the snippet containing "We have
dedicated labels for design work, the way we use them is described
[here](https://docs.numerique.gouv.fr/docs/2d5cf334-1d0b-402f-a8bd-3f12b4cba0ce/)"
and the other occurrence noted at 106-106) to use descriptive link text.

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@CONTRIBUTING.md`:
- Line 28: CONTRIBUTING.md contains typos that fail codespell (e.g.,
"documention" should be "documentation"); open CONTRIBUTING.md, fix the
misspellings reported by codespell (replace "documention"→"documentation" and
correct the other occurrences referenced at lines 86, 98, 169), run codespell
locally to verify no remaining issues, and commit the corrected file so the CI
no longer fails.
- Line 112: Replace the malformed checklist bullet "* **blank line after the
commit title" in the commit-message instructions with a valid markdown list
item; update the exact text string to a proper checklist or bullet such as "- [
] blank line after the commit title" or "* blank line after the commit title" so
it renders correctly in CONTRIBUTING.md.
- Line 76: Replace the invalid absolute URL "[README.md](http://README.md)" in
CONTRIBUTING.md with a repository-relative link by changing that link target to
"./README.md" (or "README.md") so contributors are directed correctly; locate
the markdown line containing the link text "[README.md](http://README.md)" and
update the link target accordingly.

---

Nitpick comments:
In @.github/PULL_REQUEST_TEMPLATE.md:
- Line 34: Update the template note "*Skip If you didn't use AI for your
contribution*" to sentence case so it reads "*Skip if you didn't use AI for your
contribution*" to match the style used elsewhere (see the similar line at Line
20); modify the literal string in the file to replace "If" with "if".

In `@CONTRIBUTING.md`:
- Line 38: Replace the vague link text "here" in the sentence "We have dedicated
labels for design work, the way we use them is described [here](...)." with a
descriptive label such as "design label usage guide" (or similar) so link text
is meaningful and fixes markdownlint MD059; update both occurrences (lines
referenced by the snippet containing "We have dedicated labels for design work,
the way we use them is described
[here](https://docs.numerique.gouv.fr/docs/2d5cf334-1d0b-402f-a8bd-3f12b4cba0ce/)"
and the other occurrence noted at 106-106) to use descriptive link text.

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Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 84a41144-bef6-4e25-b2e0-d8e09979d1bc

📥 Commits

Reviewing files that changed from the base of the PR and between 4b4319d and fe5d84a.

📒 Files selected for processing (2)

• .github/PULL_REQUEST_TEMPLATE.md
• CONTRIBUTING.md

[virgile-dev]

@AntoLC @lunika this is ready

[AntoLC]

You still have typo:

./CONTRIBUTING.md:28: documention ==> documentation
./CONTRIBUTING.md:86: formating ==> formatting
./CONTRIBUTING.md:98: adressed ==> addressed
./CONTRIBUTING.md:169: responsability ==> responsibility

The italic part should be under I guess, no?

[AntoLC]

You still have a typo, this job flags that:

[AntoLC]

All this section is not about test, only the 2 first lines.

[virgile-dev]

Thanks will update ! sorry for the back and forth