Information on how to create and wear a face covering and printable exemption cards

The following link https://www.gov.uk/government/publications/face-coverings-when-to-wear-one-and-how-to-make-your-own from the government details how to wear a face-covering since it became compulsory, (unless you are exempt), to wear one in enclosed public spaces and shops last week.  It also shows how to make your own face covering and templates to create an exemption card, that those exempt can show when challenged (both electronic and printable).