I lifted the document from the website and pasted the contents into a libreoffice odt
file. I used markups and comments to highlight some spelling errors and some improvements
to sentence construction.
That document is accessable from this link. The author (Roger) produced a fine first pass.
Congratulations Roger.
The link to fetch it is
https://dl.dropboxusercontent.com/u/42050559/Grub%20Multiboot%20Edit%20in...
Regards
Leslie