To send a PR to fix a link in a webpage, you can follow these steps:

1. Fork the repository containing the webpage.
2. Make the necessary changes to fix the broken link in the webpage.
3. Commit your changes to your forked repository.
4. Create a pull request from your forked repository to the original repository.
5. Provide a clear description of the changes you made in the pull request.
6. Wait for the maintainers to review and merge your pull request.