More precise excerpt selection

What you guys thinks about adding functionality to specify either number of paragraphs to take, or minimum characters. (so if first paragraph have less than minimum characters, take also next one and so on..)

I can prepare PR if you are interested in it.

The issue names no files, entry points, or tests. Start by locating the plugin's current excerpt-selection logic and its existing tests, then compare paragraph-count and minimum-character behavior with the request. Done means the intended option is supported and covered by tests, including excerpts that span multiple paragraphs.

Written by the indexing model from the issue text.