Add mention of `bs-custom-file-input` needed for the custom file input (!32457) · Merge requests · Bootstrap / bootstrap · GitLab

Merged Patrick H. Lauke requested to merge v4-issue32334 into v4-dev Dec 13, 2020

Closes https://github.com/twbs/bootstrap/issues/32334

https://deploy-preview-32457--twbs-bootstrap.netlify.app/docs/4.5/components/input-group/#custom-file-input