[Specs-cx] Multi-party contract

[nara hideki]

Hi, all.
Sorry. I have to correct my mistyping.

Wrong:

> /Contract/Party/obligation/to [0..n]
>  - Parties which can request @endpoint and must be one of
>
> /Contract/Party/@id
>  - If no "to" element is specified, any party in this Contract can
> request @endpoint( i.e. wildcard )
>

Corrected:

/Contract/Party/obligation/to [0..n]

  - Parties which can request @endpoint and must be one of /Contract/Party/@id
  - If no "to" element is specified, any party in this Contract can
request @endpoint( i.e. wildcard )