* Add csharp to rule S4347
* Add C# content for BouncyCastle
* Use a better seed source.
* Update highlighting and message
* Change documentation URLs to be specific per language
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Co-authored-by: jamie-anderson-sonarsource <jamie-anderson-sonarsource@users.noreply.github.com>
Co-authored-by: Jamie Anderson <jamie.anderson@sonarsource.com>
Co-authored-by: Egon Okerman <egon.okerman@sonarsource.com>
Co-authored-by: Gregory Paidis <115458417+gregory-paidis-sonarsource@users.noreply.github.com>
## Review
A dedicated reviewer checked the rule description successfully for:
- [x] logical errors and incorrect information
- [x] information gaps and missing content
- [x] text style and tone
- [x] PR summary and labels follow [the
guidelines](https://github.com/SonarSource/rspec/#to-modify-an-existing-rule)
Inline adoc files when they are included exactly once.
Also fix language tags because this inlining gives us better information
on what language the code is written in.
