* Update is_story and is_story_play descriptions
* Clarify 'is_self_view' field description
Updated the description for the 'is_self_view' field to clarify its purpose.
* Update is_view_self description in info.md
* Add new copyright type to video info documentation
* Update copyright field options in space.md
* Update copyright field options in history.md
* Update copyright field options in toview.md