Add a membership section to the home page design

[arthurHarding]

People need to be able to sign up to be a Cooperation Hull member on the website. We need a section on the homepage which has some copy and links to the sign up page

[arthurHarding]

I also need to update the copy for the sign up form

[arthurHarding]

How we think about our membership has changed, so it's not going to be on the home page. We just need to make sure there's a link in the nav bar. I've written some new copy for the sign up form in Figma