Fix broken links by correcting case sensitivity in URLs

[Marcofann]

This pull request addresses the issue of broken links in the README.md file. The issue was caused by the incorrect capitalization of "Consensys" in URLs. All occurrences of "Consensys" have been replaced with "consensys", resolving the broken links.

Summary of changes:

• Updated all URLs in the README.md to use "consensys" in lowercase instead of "Consensys."
• Verified that the corrected URLs are now functional and direct to the appropriate resources.

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Type of change:

• Bug fix (non-breaking change which fixes an issue)

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How has this been tested?

• Manually checked all updated URLs to ensure they are functional and direct to the correct pages.

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Checklist:

• Performed a self-review of the changes.
• Commented on the changes where necessary.
• Verified that the updated links are functional.
• All existing unit tests pass.

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Thank you for reviewing this pull request! Please let me know if additional adjustments are required.