Refactor and Update Main Workflow Documentation

[ivdiazsa]

This is a tracking issue for an active ongoing effort to improve the dotnet/runtime repo's docs. It started as a QW with its milestone achieved in PR #75569. After receiving feedback from several experts, there are more areas of opportunity to improve our docs, which this issue aims to keep track of.

The current list of pending items:

• Move/refactor the instructions docs within docs/workflow/building/coreclr to a more general level, since a handful of the instructions defined in those docs apply to the whole repo. Rewrite as needed, so that it's all clear and add specific subset docs as needed (if any).
• Update FreeBSD instructions and requirements.
• Universalize Markdown formatting throughout the docs.
• Ensure there is at least one path to every doc in the repo.
• Pass through files untouched by the aforementioned PR and add whatever work items are found to this template.

Setting the milestone to .NET 8 to help keep this issue relevant and not forgotten :)

[dotnet-issue-labeler]

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[ghost]

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Issue Details

---

This is a tracking issue for an active ongoing effort to improve the dotnet/runtime repo's docs. It started as a QW with its milestone achieved in PR #75569. After receiving feedback from several experts, there are more areas of opportunity to improve our docs, which this issue aims to keep track of.

The current list of pending items:

• Move/refactor the instructions docs within docs/workflow/building/coreclr to a more general level, since a handful of the instructions defined in those docs apply to the whole repo. Rewrite as needed, so that it's all clear and add specific subset docs as needed (if any).
• Update FreeBSD instructions and requirements.
• Universalize Markdown formatting throughout the docs.
• Ensure there is at least one path to every doc in the repo.
• Pass through files untouched by the aforementioned PR and add whatever work items are found to this template.

Setting the milestone to .NET 8 to help keep this issue relevant and not forgotten :)

Author:	ivdiazsa
Assignees:	ivdiazsa
Labels:	documentation, area-Infrastructure-coreclr
Milestone:	8.0.0