Add (optional) time limit section to annotated_standard_annual_general_meeting_agenda.md

[bradleysigma]

No description provided.

[49Indium]

I like the idea of this. Personally, I would suggest 3 minutes for all T3 positions, but this is just a vague feeling. Also, the punctuation is a little awkward with the double colon and hyphen. Maybe something like Optionally set time limits for speeches; Suggested limits:.