Greasy Fork

This version should fix the reported issue with fics accessed through collections -- they have a different URL, which was previously not included.

Added @licence key (public domain); no actual code change.

I completely forgot that I wrote this, and found it while seeing if anyone had written it before I wrote it again! I originally implemented the empty paragraph check in a half-assed way which didn't take into account paragraphs with non-text child elements -- this is now fixed, which should resolve the issues with other elements on the page disappearing.