I am an enthusiastic amateur web developer with some experience with WordPress and Drupal. These are both Web Content Management systems which are ideal for building dynamic websites that authorised users (i.e. shed members) can maintain and update with no special skills. I would not recommend that you try to build a static website with just HTML.
I belong to the Dalbeattie Men’s Shed in SW Scotland and made their website with Drupal. I have also built a website at Sandes Ancestry which is a family history website and I taught another man to build this website at Colvend Community Council.
I will happily help you with a website for your shed at no cost at all. You will only have to pay for the domain name (e.g. myshedname.com) about £10.00 per year and hosting costs about £5.00 per month.