Update README for Git practice

[vaishuindukuri-create]

This pull request updates the README as part of Git and GitHub practice.

Changes:

• Added Git practice section to README

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[gemini-code-assist]

Code Review

This pull request adds a personal practice section to the README.md file. The feedback advises against merging personal practice changes into a shared repository's documentation to keep it clean, and suggests adding a trailing newline to the file to comply with POSIX standards.

[gemini-code-assist]

This section appears to be for personal Git practice. To keep the repository documentation clean and relevant for all users, personal practice changes should not be merged into the main branch of a shared public repository. Consider practicing in a personal fork or scratch repository instead.

[gemini-code-assist]

The file does not end with a newline character. It is recommended to end all text files with a newline to comply with POSIX standards and avoid git warnings.

Suggested change

	I created my first branch and made my first Git change.
	I created my first branch and made my first Git change.