About view-only channels

[jorge-campo]

Hi @shamisem - This content works along with https://github.com/status-im/help.status.im/pull/664, 'Set up a read-only channel'.

Thanks!

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• Merge conflicts with 'develop' branch -- 662 first draft -- ready for review
• 662 minor fixes on index and config files

[jorge-campo]

Thank you for your comments, @shamisem ! All add all of them to the draft 😄