OpenGraph, Twitter Cards and schema.org JSON-LD metadata are missing from the page

[almereyda]

The new Discourse forum https://forum.indiebits.io/ revealed that any page currently does not offer reusable metadata about their contents.

This can be implemented through:

• OpenGraph tags
• Twitter Cards
• schema.org JSON-LD markup

[anderspitman]

See also https://forum.indiebits.io/t/rereading-documentation-client-arguments-largely-redundant/39

[almereyda]

This will require a change in the templating procedure for the page header partial, similarly as in #10 (comment)