Update 6_extra.md

Author: priya-gitTest

episodes/6_extra.md

@@ -8,15 +8,13 @@ exercises: 5
 
 - How can we use `pixi run start`?
 - How to yank or un-yank a release?
-- How to automatically version and store your releases from via Codespaces 
 
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 ::::::::::::::::::::::::::::::::::::: objectives
 
 - Learn how to use Pixi to run your project.
 - Learn how to make a release unavialable or undo that.
-- Learn how to use dynamic versioing and release from via codespaces.
 
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