See a step by step example here.
Everyone's Airtable fields are different, so this example shows you the basics! Your form questions should match the fields you wish to update in Airtable.
<%= heading %>
<% } %>
<%= heading %>
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<% blocks.forEach(function(block, index) { %>
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<% if (imageHeight) { %>
<% } %>
<% if (block.name) { %><%= block.name %>
<% } %> <% if (block.description) { %><%= block.description %>
<% } %> <% if (block.linkText && block.html_url) { %> <% } %>
<% }) %>