docs(gmail): the --draft tip prints a send command that fails (users.drafts.send --body) #914

After gws gmail +send --draft, the CLI prints this tip:

Tip: copy the draft "id" from the response above, then send with:
  gws gmail users.drafts.send --body '{"id":"<draft-id>"}'

Both halves of that command are wrong, so following the tip fails twice:

1. gws gmail users.drafts.send --body '{"id":"..."}'
   → error: unrecognized subcommand 'users.drafts.send'
   Subcommands are space-separated: users drafts send.

2. gws gmail users drafts send --params '{"userId":"me"}' --body '{"id":"..."}'
   → error: unexpected argument '--body' found
   The request-body flag is --json, not --body.

Putting the id in --params instead returns HTTP 400 Invalid draft, since it goes to the query string rather than the request body.

What works:

gws gmail users drafts send --params '{"userId":"me"}' --json '{"id":"<draft-id>"}'

Suggested fix: update the tip's second line to the working form.

Environment: gws 0.22.5 (npm @googleworkspace/cli, current latest), macOS arm64.