If you’re using version control tools such as GitHub, GitLab or BitBucket along with Zeplin, you can add repository links to your components in Zeplin. Once your components are linked, you can quickly open repositories in the browser from designs within Zeplin and skim through the source code of your components.

You can follow this guide to start adding repository links to your components:
​https://github.com/zeplin/connected-components-docs/blob/master/docs/link/REPOSITORY.md