fix typo in readme

[blackmiaool]

Description

Add your description here

Fixes Related issues

• add related
• issues here

Checklist

• [ ] I have read and understand the CONTRIBUTIONS.md file
• [ ] I have searched for and linked related issues
• [ ] I have created test cases to ensure quick resolution of the PR is easier
• [ ] I am NOT targeting main branch
• [ ] I did NOT include the dist folder in my PR

@json-schema-form/angular-schema-form-lead

[Anthropic]

Thanks @blackmiaool appreciate your time on this :)