chore(langgraph): Fix footnotes in streaming docs

[eyurtsev]

Overview

Inline footnotes in streaming docs.

Type of change

Update existing docs to fix how they look

Checklist

• I have read the contributing guidelines
• I have tested my changes locally using docs dev
• All code examples have been tested and work correctly
• I have used root relative paths for internal links
• I have updated navigation in src/docs.json if needed
• I have gotten approval from the relevant reviewers
• (Internal team members only / optional) I have created a preview deployment using the Create Preview Branch workflow

Additional notes

[github-actions]

Preview ID generated: preview-stream-1759113557-5d91fa3

[Copilot]

Pull Request Overview

This PR fixes the inline footnotes in the LangGraph streaming documentation by replacing numbered footnote annotations with inline comments. The change improves the readability and maintainability of the documentation by eliminating the need for separate footnote explanations.

Key Changes

• Replace numbered footnote markers (# (1)!, // (2)!) with descriptive inline comments
• Remove corresponding footnote explanation sections that were separated from the code
• Maintain all technical information while making it more accessible inline