[site generators] enable filtering by library

[yinonov]

should site generators be filtered by library?

in the process of evaluating tools for static site generation I have found it hard to understand which of the available tools are capable of being nested within an existing project.

It seems that a tool defining its library capability are way more suited to be integrated within such existing projects.

It can save time if site generators page would have a library search. perhaps by adding selectable tags?