Link Source Code for `/code-analysis/style-rules` in Documentation

**Issue description**

What is the "source of truth" / source code from which these documents are created? Looking at the documentation, the index is a manually curated and may be missing rules.

**Ask:**

Update documentation with source code reference to relevant analyzer code.
- https://github.com/dotnet/docs/blob/df57a53a0969a418df63e53dd17bbe9a879cb6ea/docs/fundamentals/code-analysis/style-rules/index.md

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#### Document Details

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* ID: b0a396c1-9c21-75a9-70b5-799cafc941b5
* Version Independent ID: 6d91b560-c12f-6e6d-e92b-1babb27edb67
* Content: [Code-style rules overview - .NET](https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/style-rules/)
* Content Source: [docs/fundamentals/code-analysis/style-rules/index.md](https://github.com/dotnet/docs/blob/main/docs/fundamentals/code-analysis/style-rules/index.md)
* Product: **dotnet-fundamentals**
* GitHub Login: @gewarren
* Microsoft Alias: **gewarren**