patchDocumentation: fix a few typos in git-notes.txt

> ---
> This is based on next and is orthogonal to tr/notes-display in pu.
>
>  Documentation/git-notes.txt |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/git-notes.txt
> b/Documentation/git-notes.txt index 14f73b9..bef2f39 100644
> --- a/Documentation/git-notes.txt
> +++ b/Documentation/git-notes.txt
> @@ -46,13 +46,13 @@ list::
>
>  add::
>  	Add notes for a given object (defaults to HEAD). Abort if the
> -	object already has notes, abort. (use `-f` to overwrite an
> +	object already has notes (use `-f` to overwrite an
>  	existing note).
>
>  copy::
>  	Copy the notes for the first object onto the second object.
>  	Abort if the second object already has notes, or if the first
> -	objects has none. (use -f to overwrite existing notes to the
> +	object has none (use -f to overwrite existing notes to the
>  	second object). This subcommand is equivalent to:
>  	`git notes add [-f] -C $(git notes list <from-object>) <to-object>`