For those users who choose to disable Javascript or choose browsers that have no Javascript engine:

    curl https://easydatawarehousing.github.io/ferro/main_content.json \
    |exec sed '/{\"/{s/{\"/<pre>\
    \
    &/g;s/,\"/\
    &/g;s/\content\":\"/&\
    \
    <\/pre>/g;};s/\"}/&\
    \
    /g;s/\\u0026/\&/g'|exec unvis -h > 1.htm
    
    exec firefox file:///1.htm