Add feature to customize meta tag by each page's frontmatter

[masolin]

Hi tiste, I add a new feature that user can easily customise meta tags from page's front matter. For example, if a page contain title: "foobar" in its front matter, then title tag would show foobar rather than site wide default value. This is useful to me, because I would like to customise each pages of blog. Could you please help to review it? Thanks a lot. :smile:

[tiste]

Thanks for that!

I didn't want to make that out because of dynamic values that can't be parsed by frontmatter, but anyway, it could be useful for static ones :smile: