octave contributing guidelines

[David Bateman]

Jaroslav Hajek wrote:
> hi all,
>
> here are the first bits for the new "Contributing guidelines" chapter
> in Octave manual. This is a pre-alpha-zero version,
> so it's probably not worth being applied to public archive - but I
> would like to get comments, suggestions, criticisms etc.
> changeset attached.
>   
"making making" -> "making"

and maybe the exception to the spacing rules should be discussed. That 
is you should write "sin (x)" except in a case like "[sin(x), cos(x)]" 
as the space between the function name and the brackets in "[]" will 
result in a parse error.

D.