Worked on the dotnet/AspNetCore.Docs repository to improve the accuracy of multi-factor authentication (MFA) documentation by correcting a broken reference link in the mfa.md file. Addressed a bug where the documentation previously pointed to an incorrect location for the AddDefaultTokenProviders source code, which could hinder developers configuring MFA TOTP. The update involved careful review and editing of Markdown documentation to ensure the link now directs users to the correct GitHub source. Focused on documentation quality and developer usability, this work leveraged skills in technical writing and source control, contributing to more reliable guidance for developers working with MFA in .NET.