data = {};

$('section.tab-content').each((i, el) => {
    let section_data = [];
    let title = $(el).find('h2');
    let h3s = $(el).find('h3');
    let rows = $(el).find('.row-default');
    console.log(title.text());
    
    h3s.each((i, h3el) => {
        section_data.push({
            header: $(h3el).text(),
            sections: []
        });
    });
    
    rows.each((ri, rel) => {
        $(rel).find('.lg-3, .lg-4').each((si, sel) => {
            let s_data = {
                header: $(sel).find('h5').text(),
                links: []    
            };
            $(sel).find('a').each((ai, a) => {
                s_data.links.push({
                    text: $(a).text(),
                    url: a.pathname
                })
            });
            console.log(section_data[ri]);
            section_data[ri].sections.push(s_data);
        });
    });
    
    data[title.text()] = section_data;
});

Object.keys(data).forEach(key => {
    console.log(key);
    console.log(JSON.stringify(data[key]));
});