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Removed multiple dead links (#349)

* removed dead links under web app -> react

* removed dead links under web app -> others

* removed dead link under python -> web app

* removed dead link under openCV

* removed two dead links and an incomplete tutorial link under desktop applications

* added tutorial under openCV, mistakenly removed earlier
A
Alabhya Jindal committed
c4207f5081b9ba4eeb89206c7ab25d7067357b0d
Parent: 21d7c30
Committed by GitHub <noreply@github.com> on 4/13/2022, 2:04:01 PM