Docs/singleton comparison

[shabinfrancis]

What does this PR do?

Adds a comparison table to the Singleton pattern documentation to help readers understand the differences between Eager Initialization and Thread-Safe Lazy Initialization implementations.

Changes

• Added a comparison table for Singleton implementations.
• Included key differences such as object creation, thread safety, synchronization requirements, memory usage, and performance considerations.
• Improved readability for beginners learning the Singleton design pattern.

[github-actions]

PR Summary

Added a comparison table in the Singleton README contrasting Eager Initialization and Thread-Safe Lazy Initialization, highlighting object creation timing, thread safety, synchronization, memory usage, performance, and complexity. Also added a notification service example to the Factory Method README to improve readability for beginners learning design patterns.

Changes

File	Summary
factory-method/README.md	Added a concise narrative demonstrating a Factory Method selecting a notification service (Email, SMS, or Push) to illustrate the pattern's instantiation logic.
singleton/README.md	Introduced a new section 'Singleton Implementation Comparison' that contrasts Eager Initialization with Thread-Safe Lazy Initialization, detailing object creation timing, thread safety, synchronization needs, memory usage, and performance.

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autogenerated by presubmit.ai

[github-actions]

✅ LGTM!

Review Summary

Commits Considered (2)

• 690b4b8: docs: add comparison table for singleton implementations
• 47a97fb: Add notification service example to Factory Method README

Files Processed (2)

• factory-method/README.md (1 hunk)
• singleton/README.md (1 hunk)

Actionable Comments (0)

Skipped Comments (2)

• factory-method/README.md [34-36]

  readability: "Clarify Factory Method documentation example."

• singleton/README.md [40-49]

  readability: "Add explanatory context to the singleton comparison table."

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

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