how do iget the legend where do i search to get it

[KanyeWest]

how do i get the legend on my boards i searched on site but i cant find it
here is example

[Challenge]

Edit the phrase "most_users_ever_online_was_x_y_at_z".
It could for examble be:
Most users ever online was {1}, {2} at {3}.<br> <i>legend:</i> [&nbsp;<strong><font color="green">Administartor</font></strong>&nbsp;]&nbsp;[&nbsp;<i><font color="#767676">Moderator</font></i>&nbsp;]

[KanyeWest]

Edit the phrase "most_users_ever_online_was_x_y_at_z".
It could for examble be:
Most users ever online was {1}, {2} at {3}.<br> <i>legend:</i> [&nbsp;<strong><font color="green">Administartor</font></strong>&nbsp;]&nbsp;[&nbsp;<i><font color="#767676">Moderator</font></i>&nbsp;]
props bro props all the way :up: :)