Associate page title with project title in title tag

[mojavelinux]

Currently, the title tag only contains the page title (e.g., "PDF Export") followed by the site title ("Asciidoctor Docs"). It does not include the project title. As a result, when the page is indexed, the project to which this page belongs is not evident.

PDF Export | Asciidoctor Docs

The title tag needs to include the project title as well. We need to decide where to insert it, and what delimiter to use to offset it from the other titles. Here are several options:

• %project% - %page% | %site% (e.g., Asciidoctor reveal.js - PDF Export | Asciidoctor Docs)
• %page - %project% | %site% (e.g., PDF Export - Asciidoctor reveal.js | Asciidoctor Docs)
• %page | %project% | %site% (e.g., PDF Export | Asciidoctor reveal.js | Asciidoctor Docs)

The page title should probably go first since that's the most significant information about the page and we don't want it to get cut off. If we agree, then it's just a matter of deciding on the delimiter.

If the project is "Asciidoctor", we could consider dropping the project segment.