A `.` is appended to `tref` where it doesn't belong

[kordwarshuis]

• What: A . is appended to tref where it doesn't belong
• Where: https://trustoverip.github.io/kswg-keri-specification/#term:.-indexed-signature

[kordwarshuis]

This is not a bug, but intentionally, see the dot after the last comma in the following snippet, taken from the markdown file:

[[tref: keri1, indexed-signature,. Indexed signature]]

@henkvancann do you think this is intentionally written?

[RohitChoukiker]

Hi, I would like to work on this issue. I have reviewed the problem and would like to contribute a fix. Could you please assign it to me?