docs: remove height attributes and improve README formatting

[Raghu0703]

Describe your change:

Improved the README.md file by removing hardcoded height attributes from badge images and cleaning up formatting for better responsiveness and readability.

Changes made:

• Removed height="20" attributes from all badge images
• Removed extra blank lines for cleaner formatting
• Updated image URLs to latest versions
• Improved Discord badge styling
• Updated alt text from "code style: black" to "code style: ruff"
• Changed "Use them at your discretion" to "Use them at your own risk" for clarity

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Add or change doctests? -- Note: Please avoid changing both code and tests in a single pull request.
• Documentation change?

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new Python files are placed inside an existing directory.
• All filenames are in all lowercase characters with no spaces or dashes.
• All functions and variable names follow Python naming conventions.
• All function parameters and return values are annotated with Python type hints.
• All functions have doctests that pass the automated testing.
• All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
• If this pull request resolves one or more open issues then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".

[Raghu0703]

Thank you for reviewing this PR! 🙌
This update focuses solely on improving the README.md for better readability and modern badge styling while maintaining the original content and intent.

Key Highlights:

Removed hardcoded height attributes to make badges responsive across devices.

Updated badge URLs and alt texts for accuracy and accessibility.

Cleaned up extra blank lines for a more compact and consistent layout.

Improved Discord badge styling for visual consistency with other badges.

Replaced “Use them at your discretion” with “Use them at your own risk” for clearer user understanding.