Note on Enter to select/deselect on REPL.TerminalMenus

[metanoid]

I used a tool which uses the MultiSelectMenu from REPL.TerminalMenus.
The header of the menu mentions [press: d=done, a=all, n=none] but does not mention <enter> = select/deselect option under cursor.

I was unsure of what to do so I had to check the docs.
Changing this line
from

header(m::MultiSelectMenu) = "[press: d=done, a=all, n=none]"

to

header(m::MultiSelectMenu) = "[press: d=done, a=all, n=none, Enter=toggle]"

would save me some time/hesitation in future