Do-over: chapter for Studio work

I made a mess of my branches, so starting over. 
@lou-wang, @tymofij, @polesye, @olmar, @remyedX, and @uhanile this chapter has been reworked significantly to reduce content to only what is different about the process for course teams using the new workflow. Reviewed thoroughly by @rjgrubb.
@nasthagiri, @frrrances, @WatsonEmily , @srpearce , @mhoeber, @catong FYI.
In table, remove first row: output
Revise second row to: Codec & Container: H.264, mp4 
In 4th row, change “Aspect” to “Pixel Aspect Ratio”