Making my own Vim memento with a shortcut

[kib2]

Hi,

I suppose it is possible to do this in Vim (what's not ?) :
1. Write a file listing all my shortcuts in VimDoc format ;
2. Assign this file to a mapping, say i.e Shift+F5 ;

If so,

1. Where to find references on the VimDoc format ? Should I have to 
place it inside 'doc' ?
2. How ?

Thanks.