chat-cli: Update ;help link
The link used here resolves with a 301 to the proper page for messaging usage, but not actually the 'messaging' section of that page. This commit provides a more direct link to the exact instructions.
++ help
^- (quip move _this)
=- [[- ~] this]
- (print:sh-out "see https://urbit.org/docs/using/messaging/")
+ (print:sh-out "see https://urbit.org/using/operations/using-your-ship/#messaging")
--
--
::
