Add Label Studio Documentation (#746)
* Add documentation for Label Studio Spaces
Adds documentation for Label Studio in Spaces, including how to
configure the space as a prodution annotation platform
* Add Label Studio documentation to the table of contents
* Apply suggestions from code review
Apply suggested changes
Co-authored-by: Omar Sanseviero <osanseviero@gmail.com>
* Apply additional suggestion
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Co-authored-by: Omar Sanseviero <osanseviero@gmail.com>
