Update Memory Management Guide

[sarahyurick]

Page refresh for https://docs.nvidia.com/nemo/curator/25.09/reference/infrastructure/memory-management.html

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Greptile Overview

Greptile Summary

This PR refreshes the Memory Management documentation guide and updates related tutorial references across the documentation.

Key Changes:

• Memory Management Guide (docs/reference/infrastructure/memory-management.md): Comprehensive expansion with new sections on Pipeline/Executor architecture, detailed explanations of resource declaration and worker management, expanded monitoring section covering Prometheus/Grafana integration, and enhanced best practices with practical examples
• Execution Backends (docs/reference/infrastructure/execution-backends.md): Minor reorganization to clarify the distinction between RayDataExecutor and RayActorPoolExecutor sections
• Audio Tutorial (docs/curate-audio/tutorials/beginner.md): Updated file structure documentation, refreshed command-line examples to match current implementation, removed deprecated dependency installation steps
• Video Getting Started (docs/get-started/video.md): Fixed example script path to point to GitHub tutorials directory instead of deprecated module import path

All technical content is accurate, code examples use correct imports and class names, cross-references are valid, and file paths point to existing resources in the repository.

Confidence Score: 5/5

• This PR is safe to merge with no identified issues
• All changes are documentation-only updates with verified technical accuracy. Code examples use correct imports and class names that exist in the codebase. File paths and URLs reference valid resources. Cross-references use proper Sphinx syntax and point to existing targets. The changes improve documentation clarity and bring tutorial examples up to date with current implementation.
• No files require special attention

Important Files Changed

File Analysis

Filename	Score	Overview
docs/reference/infrastructure/memory-management.md	5/5	Major content refresh with expanded explanations of Pipeline/Executor architecture, memory management strategies, monitoring setup with Prometheus/Grafana, and detailed best practices
docs/reference/infrastructure/execution-backends.md	5/5	Minor reorganization to clarify RayDataExecutor vs RayActorPoolExecutor sections and correct heading hierarchy
docs/curate-audio/tutorials/beginner.md	5/5	Updated file structure, removed dependency installation step, and refreshed command-line examples to match current tutorial implementation
docs/get-started/video.md	5/5	Updated example script path to point to GitHub tutorials directory instead of deprecated module path

Sequence Diagram

sequenceDiagram
    participant Author as Documentation Author
    participant PR as Pull Request
    participant Docs as Documentation Site
    participant User as End User

    Author->>PR: Update memory-management.md
    Note over Author,PR: Expand Pipeline/Executor architecture<br/>Add monitoring best practices<br/>Clarify batch size configuration

    Author->>PR: Update execution-backends.md
    Note over Author,PR: Reorganize executor sections<br/>Clarify RayDataExecutor vs RayActorPoolExecutor

    Author->>PR: Update beginner.md (audio tutorial)
    Note over Author,PR: Update file structure<br/>Refresh command examples<br/>Remove deprecated paths

    Author->>PR: Update video.md
    Note over Author,PR: Fix tutorial script path<br/>Point to GitHub tutorials directory

    PR->>Docs: Merge and deploy
    Note over Docs: Documentation site updated<br/>at docs.nvidia.com

    Docs->>User: View refreshed guides
    Note over User: Better understanding of:<br/>- Memory management strategies<br/>- Executor configuration<br/>- Tutorial usage patterns

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