feat(github): add a doc-only PR template (#3105)

Author: louismaximepiton

.github/PULL_REQUEST_TEMPLATE.md

@@ -4,4 +4,5 @@ Click the `Preview` tab and select a PR template:
   - [Release Boosted](?expand=1&template=boosted-release-template.md) (Core team only)
 - **OUDS Web**:
   - [Contribute to OUDS Web](?expand=1&template=ouds-contribution-template.md)
+  - [Docs only to OUDS Web](?expand=1&template=ouds-doc-template.md)
   - [Release OUDS Web](?expand=1&template=ouds-release-template.md) (Core team only)

.github/PULL_REQUEST_TEMPLATE/ouds-doc-template.md

@@ -0,0 +1,26 @@
+### Related issues
+
+Closes #
+
+### Description
+
+<!-- Describe your changes in detail -->
+
+### Checklists
+
+- [ ] I have read the [contributing guidelines](https://github.com/Orange-OpenSource/Orange-Boosted-Bootstrap/blob/ouds/main/.github/CONTRIBUTING.md)
+- [ ] My change follows the [developer guide](https://github.com/Orange-OpenSource/Orange-Boosted-Bootstrap/wiki/Developer-guide)
+- [ ] My change follows the page structure defined in #3045
+- [ ] Title and DOM structure is correct
+- [ ] Links have been updated (title change impacts links for example)
+
+### Progression (for Core Team only)
+
+- [ ] Code review
+- [ ] Commit on `ouds/main` following [conventional commit](https://www.conventionalcommits.org/en/v1.0.0/)
+
+### Live previews
+
+<!-- Please add direct links where your modifications can be seen in the documentation -->
+
+- <https://deploy-preview-{your_pr_number}--boosted.netlify.app/>