gmi2xhtml supports comments in gemtext
Quick note about gmi2xhtml, now it supports commented lines.
It is not in gemtext specification, but I wanted it.
As suggested, I followed the "3 firsts char in a line" rule.
If a line starts with "//", it is a comment.
I already had added horizontal rules with "---".
It is not essential, and "my" gemtext remains readable.