Trimming elides markdown format

[Falco]

@ThiefMaster

Anyway, don’t email signatures that are delimited with -- usually have a blank line right before the -- line? So maybe that could be taken into account when parsing emails?

I think thats handled here

lib/email_reply_trimmer/delimiter_matcher.rb

If you want to propose a PR we can take a look at it. It’s a tricky area, as regressions are very visible.