Implement Jest Tests for Badge Maker for Readme

The Badge Maker for Readme currently lacks Jest tests. We need to add tests to ensure its functionality and reliability.

**Tasks:**

- Identify the key functionalities of Badge Maker for Readme.
- Write unit tests for:
- Component rendering
- User interactions
- Props and state management
- Write integration tests for:
- Any significant workflows (if applicable)
- Ensure all tests pass in the local environment and CI/CD pipeline.
- Update the documentation to include instructions on running the tests.

**Acceptance Criteria:**

- Jest tests for Badge Maker for Readme are created and passing.

The issue names no source files, test entry points, or Jest configuration; start by locating the Badge Maker for Readme implementation and identifying its key workflows. Add coverage for rendering, interactions, props/state, and applicable workflows, then ensure the tests pass locally and in CI and document how to run them.

Written by the indexing model from the issue text.