[WIP] Update documentation on creating and managing branches in Git

[Copilot]

• Create a new documentation file docs/git-branch-management.md
• Add comprehensive explanation of Git branching
• Include git branch command with examples
• Include git checkout command with examples
• Include git merge command with examples
• Include git rebase command with examples
• Update the docs README to reference the new file
• Lint the markdown file to ensure it follows the repository standards

Original prompt

Explain how to create and manage branches in Git. Include commands like git branch, git checkout, git merge, and git rebase. Provide examples for each command.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[mdellison90-stack]

@mdellison90-stack