* docs: Fix broken or dead links
Used the following commands to find broken links:
1. `lychee -E --dump https://freshrss.github.io/FreshRSS/en/ --include freshrss.github.io --output links.txt`
2. `lychee -v --suggest --archive wayback --timeout 5 -u "Mozilla/5.0 (X11; Linux x86_64; rv:148.0) Gecko/20100101 Firefox/148.0" --files-from links.txt --output output.txt`
3. `cat output.txt`
Then did the same for https://freshrss.github.io/FreshRSS/fr/
We could look into using lychee in CI:
https://github.com/lycheeverse/lychee?tab=readme-ov-file#github-action-usage
* Replace PostgreSQL 16 link with current version
Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>
* Remove paragraph about bug message format
* Update README with official app website links
* Replace broken French images with English versions
* Fix broken Fever API docs link in French docs
* Replace GNU Social link with new one in `shares.php`
---------
Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>
* Use typographic quotes
* A few fixes
* Fix
* Fix not saved
* Implement feedback
* Detail
* Revert spoken English fixes
Left for a future dedicated discussion
* More reverts
* Final reverts
* Final minor
* Improved markdownlint
* Relaxed rules slighlty
* `npm run markdownlint` for automatic tests
* `npm run markdownlint_fix` for automatic syntax fixing
* Applied the fixes on all our Markdown files